|
|
MICROBITS BULLETIN OF THE
|
|
|
PRESIDENT Dan McHugh
VICE PRESIDENT Alan Wilkins
SECRETARY Susan Hansen
TREASURER Bob White
BOARD OF DIRECTORS Juanita Curtis Jack Nieburger Paul Adams Ann Seminaris (Alternate)
FEDERATION DIRECTOR Beverly Moreau
DUES $10 Single, $15 Membership Plus
MEETINGS Third Saturday in
even numbered months,
MICROBITS EDITOR Beverly Moreau (see Federation Director)
|
President’s Message Happy Holidays to
all! Trying to ensure that everyone
may attend our last meeting of this year, we have changed our meeting date to
the second Saturday of the month – the 14th. We will be meeting in the Board room of the
This will be an important meeting. It is the final opportunity to make plans for our January 2003 Pacific Micromount Conference. Lets make this conference as great as all of our past ones! We still need specimens for our auction and for the sales table. Our December meeting is also the traditional time for election of the club’s officers. I strongly encourage anyone with an interest to seek an office. This is a great opportunity to help with the administrative matters of our organization. On a personal
note, my mineral collecting interests are changing and are moving towards the
study of classic, historical localities of the east coast that were producing
150-200 years ago, and in particular, the history of mineral collecting in
Pennsylvania. As some of you know, _______________ Change in Meeting Date for December 2002 The meeting date for December has been
changed to Sat., 12/14, to avoid possible travel conflicts for
our members. The meeting time is Directions: From the 60 freeway (east or west), exit on
|
Bits and Bytes
Web Site for SCMM:
Following is the web site for SCMM:
http://www.mineralsocal.org
Then click on
We will be posting the MicroBits on this site as well as the MSSC Bulletin, and perhaps the So. California Friends of Mineralogy bulletin.
Sunshine
Corner
Word has reached us that Fred DeVito was put on a new chemotherapy treatment that is now FDA approved, and he is better that he has been in years. He has even been seen out splitting wood again!
Juanita Curtis is doing very well these days and will have a follow-up endoscopy to make sure her ulcers are healing. If results are positive, she may be able to avoid a new series of three antibiotics and chemotherapy treatments.
We’ll be praying for continued healing for these members, and all those who need our support. Please let us have information about others who are in need of a little sunshine.
Coming our Way in June 2003
AFMS.CFMS Show –
At
(formerly
10
June 5. 6. 7, 8, 2003
Sponsored by Del Air Rockhounds, Inc.
Faceters’ Symposium
Featured Speakers
President’s Message (Cont’d.)
Two Pennsylvanians, George Fisk
and the Reverend Rakestraw in
Well, these two articles show that the debate over collecting small, perfect specimens versus large, showy ones existed at least one hundred years ago, and will probably go on for sometime in the future. Hope you all enjoy reading these two articles, and I look forward to seeing you at our meeting on December 14th.
Dan
REMINDER RE MINERAL DONATIONS
Pleas get your donations for the Live and Silent auctions and Sales Table to Sugar White asap, in advance of the Conference. Auction minerals must be photographed prior to auction. The winning bidder gets both the specimen and the slide. Mailings should go to
Sugar White
Both auctions and the Sales table are major sources of income for the Club to pay the expenses of the Conference and need your support.
¾ Time is of the essence! ¾
CONFERENCE NOTES
Registration: Please see the Conference Regis-tration slip on page 5 in this bulletin. It is a two-page form, with Membership Renewal informa-tion on the reverse. Only one check for both Registration and Membership is requested. See the Guidelines on page 7 for details on filling out the two forms.
Dinners Friday and Saturday: Many thanks to Julie and Carole Steele and Ann Meister for taking care of the food on Friday and Saturday nights.
On Friday, the Potluck will feature a baked ham which they will donate. Our attendees will supply the rest of the meal. Each person or family is asked to bring an appetizer (if veggies, make sure they are fresh and crisp), a salad, a side dish or casserole, or dessert.
Saturday evening’s dinner will be the familiar Lasagna Buffet (including one meatless Lasagna) with salad, rolls and margarine, and cake. (Be sure to sign up and pay your $5.00 with the Registration form at the back of this bulletin.)
Julie tells us their Committee was the only one that showed a profit in the 2002 Conference—all 21 cents went back into food budget for 2003.
Saturday Lunch at the Museum: Once again, lunch on Saturday will be Subway sandwiches, and is included with your Registration fee. Be sure to make your sandwich selection on the Registration form.
Mineral Donations: See the article on page 2 about minerals for the auctions or Sales Table. If you have minerals for the giveaway table, they should be set out on Friday afternoon during the registration and microscope setup time.
Member Slide Presentations or Short Contrib-uted Talks: See the Registration form for a space to list your possible contributions in this area.
Field
Trip: At publication time, no
details on the field trip were available.
This will be announced at the Conference, or perhaps at the December 14
meeting at
Rockhound Stickers
If you didn’t make it to the October meeting, we still have Rockhound stickers available for 50 cents each to put in the window of your vehicle. This is a way of letting other rockhounds know that you are involved in the hobby. A great public relations tool!
LOCAL SHOWS AND EVENTS
December 7-8 –
Mineral
Society of
Hours: 10-5 both days
http:www.nhm.org or 626-683-1770
December 6-8,
Hours. Fri. 9-5, Sat. & Sun. 10-5
Stan Henneman (916) 363-5011
December 7-8,
Orange belt Mineralogical Society
Show has been cancelled
January 11-12,
Tule Gem & Mineral Society
Exeter Memorial building
324 North Kaweah
Hours: 10-5 both days
Don Vieira – 509-732-7739
SEE A SHOW
CFMS Scholarship Committee Names Sugar White as 2003 CFMS Scholarship Honoree
At
its meeting in
Sugar was nominated by Pat LaRue, CFMS Executive Secretary/Treasurer, a former SCMM member and currently a member of Northern California Mineralogical Association. Sugar’s photographic work on mineral slide presenta-tions and her volunteer work with the San Bernardino County Mineral were cited in the nomination. Congratulations, Sugar!
THE
38th
PACIFIC
(Exit
north on
3:00-6:00 PM REGISTRATION, greeting friends and microscope time.
SHORT CONTRIBUTED TALKS and member slides.
10:00 AM WELCOME, Introductions and Special Announcements.
1:30 PM VERBAL AUCTION, followed by silent auction of member donated materials.
6:00 PM BUFFET DINNER. Served at Museum.
SHORT CONTRIBUTED TALKS AND MEMBER SLIDES.
.
FIELD TRIP: To be announced at the Conference.
____________________________
Registration Fee is $10.00 before Conference, $15.00 at door.
Friday night Potluck – Each family, please bring an hors d’oeuvre, salad, hot dish, dessert, etc.
Saturday lunch – Subway sandwiches – pre-selected on Registration slip. (No cost to attendees.)
Saturday night Buffet dinner is $5.00. Advance reservations necessary. (See Registration slip.)
For more information and/or a Registration package contact: Beverly Moreau, – (714) 577-8038, or e-mail at <bcmoreau@4dnet.com>
Advance Registration Slip
January 31-
Registration $10.00 per person by mail, $15.00 at the door
Names _____________________________
_____________________________
_____________________________
_____________________________
Friday Night Potluck Dinner
Bring your appetizer, salad, main dish, or dessert for an old-fashioned Potluck dinner. Your contribution will assure the success of the Potluck! (We will have the use of the kitchen facilities.)
Saturday Lunch (No cost to participants)
Subway sandwiches will be ordered based on your advance selection
Saturday Night Lasagna Buffet Dinner
$5.00 per person – number of people attending: ____ Amount ______
Field Trip on Sunday
Are You interested in attending the field trip? Yes ___ No ___
Number of participants ____
(must be paid-up members of SCMM)
Parking – Do you plan to park your self-contained
RV, trailer or van overnight at the Museum? Yes __ No __
********************************************************************************************************************
I plan on presenting a short contributed talk (__)
The topic will be: _______________________________ Approximate length of time __________
*****************************************************************************************
********************************************************************************************************
Send to: Beverly Moreau, Registrar
Pacific
Make check payable to SCMM (See other side)
Balance forward (from Registration Slip, other side) $________
_______________________________ ____/____
Address: __________________________________
__________________________________
E-Mail: __________________________________
Membership Plus -
Name: ___________________________________
___________________________________
___________________________________
___________________________________
********************************************************************************************************
Send to: Beverly Moreau, Registrar
Make check payable to SCMM (See other side)
Conference Registration and SCMM Membership Renewal Guidelines
Now is the time for you to make your advance registration for the 2003 Pacific Micromount Conference as well as renewing your membership in the Southern California Micro-Mineralogists. Page 5 and 6 of this MicroBits is a two sided form that lets you do both. Side one is your advance registration slip and side two is the membership renewal form.
Registration: Please give us the names of all in your party. We really like to have a name tag waiting for everyone. In addition to registration fees you will be asked to make reservations for Saturday dinner and pay an extra fee for that. For those signing up for the Sunday Field Trip, pay extra attention to the need for membership and dues. This year you carry over conference fees to side two. We are going to save you postage by requiring only mailing one check.
Membership renewal. Please indicate with a check mark if you are a Friend, Honorary Member or Regular Member. There are no dues for Friends or Honorary Members so your carryover fees for the Conference is your total. We keep two rosters. The Treasurer keeps track of Honorary and Regular Members while the Bulletin Editor adds to that list the Friends. Friends receive the November-December MicroBits as an invitation to the Pacific Micromount Conference.
A word about plus memberships. The primary member pays $10.00/year. All other family members at the same address are Plus members and pay $5.00/year. We need the first name of the plus members. The fee for plus members is needed to pay dues and insurance to the California Federation, which is the source of our Club’s liability insurance. This is the reason that ONLY dues paying members may participate in Field Trips.
Also, we ask that all fill out the form which includes mailing address, phone number and email address. You move around a lot and area codes change almost every day. Likewise, you change email addresses, too. This will give us an update for our rosters. Our rosters are held PRIVATE. We share a membership list with the Field Trip Chairman so she/he can make sure only current members participate. Otherwise only the Bulletin Editor and Treasurer have this information.
After you total the carryover fees from side one, add in the Regular Membership and the Plus Membership Fees, then send the form and your check (made out to SCMM) to: Beverly Moreau, .
________________________________________________________________
Reprinted from VOL. XI, THE MINERAL COLLECTOR, November 1904, Issue No 9
MINUTE MINERALOGY
By Elmer Benge
Until recently our members have paid but little attention to microscopic minerals, we were well content and happy with our hand cabinet specimens, seeing in them so much of beauty of form and color that it seemed hardly possible that our ideas should in any way be disturbed, but since some of us have taken to investigating with the aid of the microscope, there has been opened a vast field to draw from, we have not only been delighted with what we have seen but have been positively surprised and carried away with the new beauties thus unfolded.
Under the glass microscopic minerals seem to have all the properties so familiar to us in the cabinet specimens very much intensified; did we admire the color, the angles and faces, the general make-up of a hand specimen? Then the same mineral under the microscope would possess the same features so much more magnified, sharp and clear, the colors more delicate and intense, that comparison seems difficult to draw to make the mind comprehend thoroughly.
The examination of a mineral under the microscope gives other pleasures that the hand specimen cannot ; when we take up a cabinet specimen we can only take in that which the human eye is capable of seeing, we can tell all about the specimen in a very few minutes, we describe the different minerals and crystals or other physical properties which the specimen presents, and are (Continued next page)
MINUTE MINERALOGY (Continued)
satisfied that we have seen as much of it as any one else may discern. Not so with a microscopic specimen ; here you have a powerful lense to aid your eye and patience is required to thoroughly examine a specimen and take in all the varied forms and colors which, with each slight movement of the specimen are presented to the eye with kaleidoscopic effect, it must be borne in mind that movement or change of position is magnified as well as the object itself ; therefore we may take a quite small piece for examination and apparently travel over a very much greater surface, every movement, be it ever so slight, brings under our eye a new field, new minerals, new forms, new colors and new effects ; one must spend considerable time over a specimen before we can pass it by, feeling that all has been seen, and even then, on taking it up after some time has lapsed, some new feature is most apt to present itself, particularly if the objective be changed to a higher power or an objective having greater penetrative power is used or the light may fall a different way and disclose by reflected light a new fact which had escaped previous observation. As an instance of this I might mention one case that I recall.
I had a specimen of malachite from Perkiomen, Pa., which presented a very pretty surface, and had examined it as I thought very carefully, when one time I noticed a number of reflections which I had not observed before and upon using another objective of higher power, what was my surprise and delight to discover that what I had considered only a plain surface of malachite was in reality studded with doubly terminated quartz crystals, and thus what I thought to be an ordinary specimen was by accident much enhanced in value.
The shapes, angles and facets of crystals are so clear, sharp and well-defined that microscopic observation forms a valuable means of studying crystallography. One by this agency will find perfect crystals, and when I say perfect, let it be understood that I mean it to be taken literally, for it is very seldom indeed that we see in a cabinet specimen crystals that are so near perfection as to deserve the appellation, while with microscopic minerals we frequently find crystals that may be deservedly so-called, whose angles are symmetrical and proportionate, occupying the same relative positions, where the lines are clean, clear cut and sharp, where the face are without blemish, where the luster is untarnished, here, indeed, we find the perfect crystal to study and feast our eyes upon.
The selection, preparation and mounting of microscopic minerals is rather tedious and slow,
requiring patience and application; it requires persistent and close observation from field to mount; in the field the hand-glass is a valuable assistant in selection of material in the rough; every little bright speck, every reflecting facet and small cavity must be broken up into small pieces for observation under the microscope, and every piece carefully examined for suitable mounts; the breaking up of field collected material is a matter requiring some attention for you will frequently find a specimen too large for the microscope on which you have observed a fine mount, and the spot you want so small and delicate that how to get it into small enough piece for the box is a problem. Breaking up with hammer blows most frequently results in the specimen you want being jarred off, or you may crack it, or even should you succeed in breaking up the hand specimen, the actual piece you want is lost; a mineral trimmer seems to best overcome these troubles as its force is crushing not jarring, and the specimen may usually be broken where wanted, while with a hammer—well I guess we all know what usually happens; a blow, specimen gone—vocal fireworks; after the specimen is reduced to suitable size for the box, its proper mounting next demands attention.
Uneven surfaces are hard to manage under the microscope, as the inequalities require constant changing of focus, therefore, to select the best spot and so mount that the best results may be obtained requires patience and careful manipulation. I usually place the specimen approximately where wanted, using stiff glue, then under the objective I build or prop it up with small pieces of cork until I have obtained what I consider the best position, after which I lay it aside until the glue sets.
The determination of unknown minerals by the microscope is indeed a pleasure and requires close observation, as well as knowledge of the physical properties of minerals; (Continued next page)
MINUTE MINERALOGY (Continued)
for on these you must almost solely depend, and though you may have the most perfect form presented to study from, this very condition may be a barrier, for your experience has not been obtained with specimens of this character, or at least not of such a degree of purity and perfection, and thus you may be led astray; color and luster are better, angles sharper and clearer; hardness may be approximated in many cases by means of a fine needle; acid tests are not to be indulged in, except very cautiously, unless you have a lense you do not care for or a duplicate, for the fumes will dim the surface and eventually spoil it.
I have used acids to determine whether a mineral effervesced or not, conveying the acid by means of a fine gas tube ; I heated a piece of glass tube and drew it out to a fine capillary point, then by placing the finger over the open end of the tube, after immersion of the fine point in the acid, sufficient acid may be carried to the specimen under the microscope, and by simply removing the finger the acid will flow out over the specimen and its action on the mineral be observed. Care must be observed not to get the acid on the objective, for the arising fumes will do enough damage, and even if most carefully done, the objective should be wiped off with a piece of old linen or soft rice paper.
In studying a specimen it is desirable that you have a good strong light focussed on the mount; I use two lenses for this purpose, a large one near the light, which gives a large field of light, and a smaller one for concentrating. A complexity of movements for the specimen under the glass is essential, so that it may be viewed from all possible positions; for instance, you detect a particularly interesting crystal or spot. An examination from many views will materially assist in its determination and to change the position of the specimen several times, consumes much time in readjusting the focus, and in case the specimen is under high power it may be lost for a considerable period, frequently requiring a change of objective to a low power to find the spot again, and when found, change back to high power only to find that the new position does not satisfy, all of which is unsatisfactory and kills plenty of time; this I overcome by a little appliance placed on the stage by which I can get a lateral movement, a circular movement to and fro front, and a lateral circular movement combined with the other circular movement. Now by using both hands it is possible to get an almost universal motion of the mount while it is in focus, or at least by careful manipulation it can be kept in sight and the focus changed as required by the new position: by this means you can sometimes examine a crystal from its termination through its prismatic length, its planes be counted and sketches made of its different aspect; its angles approximated, luster, color, striation, and other features observed, and in case of dichroic minerals is of decided assistance. By patience, fine pointed instruments and a steady hand, much work can be done on a specimen under examination. It can often be developed by picking away the gangue around it, and brought out to a flatter field or into better light.
A fine camel’s-hair brush, slightly moistened by being drawn through the lips, can be used to pick up single crystals. By this means I have collected some quartz, chromite, garnets, and other crystals scarcely visible to the unaided eye and placed them in small vials.
A knowledge of optics, of the effects of reflected light and of polarized light, are most essential, if the student expects to do advanced work, but of these I know comparatively little and therefore pass them, hoping at a later date to be able to speak of them.
Learn to use both eyes when using the microscope, the shutting of one eye or squinting is injurious to the eyesight; I use what I term a “blind eye” which is a small piece of black vulcanized rubber, attached by a band around the eye-piece, and arranged so that the unused eye looks at it while the other views the mount. A little practice will enable one to keep both eyes open, then I find that by using the eyes alternately they do not tire so quickly.
The study of the actual formation of crystals is not only possible but exceedingly interesting; the mineral salts will afford an endless variety for this class of investigation, a saturated solution of which placed upon a glass slide in minute drops will soon evaporate and the forming (Continued next page)
MINUTE MINERALOGY (Continued)
crystals be seen shooting out in all directions, sometimes very slowly, at others so rapidly as to baffle the eye in following their lightening-like dartings. Add to this observation under polaroscopic light and one is surprisingly delighted at the magnificent color effect.
The mention here of a few salts that may be used in this manner may be opportune: alum, boracic acid, carbonate of lime and soda, chlorides of barium, cobalt and sodium, potassium chromate, citric acid, iodides of mercury and potassium, nitrates of bismuth, barites, copper, strontian and potash, oxalates of ammonia, chromium, lime and soda, oxalic acid, phosphate of lead and soda, red and yellow prussiate of potash, sulphates of cadmium, copper, and copper and potash, and many others; then, too, the combinations which may be made by different proportions of these, will give an almost endless number of varied crystallizations.
On first view one would think that the geologist had very little practical use for the microscope, but as a matter of fact the microscope has played a considerable part in building up geologic theories; witness: the discovery by Drs. Dawson and Carpenter of the organic nature of the Laurentian limestones of Canada and elsewhere, proving them to be the products of the growth of a gigantic foraminifera, the Eozoon Canadense, which appears to have grown one layer over another, and to have formed reefs of limestone similar to the work of the coral insect; the work in this line developed by studying and examinations of ooze, chalks, scundings and similar deposits, giving thousands of species of fossil plants, insects, diatoms, foraminifera, etc., has been of exceeding value in determining and placing the respective formations, geologically, and I need hardly mention the valuable aid rendered by the examinations of rock sections, results of which are too well known and recognized.
And the palaeontologist, too, has recourse to the
microscope: Many species have been either discovered or proven by its aid. As an instance, Prof. Owen, after
microscopical examination of a fossil tooth found in the Wittemberg sandstones,
Thus we see that the microscope is a most able adjunct in studying the organic world and should especially commend itself to the student of mineralogy. The subjects are endless. A numerous collection of minerals may be made more beautiful in color, more perfect in physical features taking up no considerable space and affording no end of pleasure in their selection, preparation and mounting, and in their examination and determination is knowledge, experience and food for thought, and ever after you possess a storehouse of delight for yourself and your friends.
I am indebted to Hogg’s History of the Microscope and Wythe’s Microscopic Manual for some of the facts herein mentioned
.___________________________________________________________________________________
ERRATA, - Page 125, line 2,
“Edgewaer” should be “Edgewater.” Page 127, line 8 from
bottom, “
A mine tramway forms an interesting feature of the
____________________________________
Reprinted from VOL. XI, THE MINERAL COLLECTOR, November 1904, Issue No 9
THE SIZE OF SPECIMENS
By Charles H. Pennypacker
I like a large, well-developed and characteristic specimen. Detached crystals may “rassle round” in your trays or on your shelves, but the bold and distinctly marked crystal in the matrix gives you a better ides of the association. (Continued next page)
THE SIZE OF SPECIMENS (Continued
Colonel George Gibbs in 1826 assembled a collection of
foreign and American minerals and gave it to
It was once declared that
Dr.
A. E. Foole was securing azurites and malachites and sundry other copper
minerals in
Friend Coxe came, and saw, and surrendered; and when the Frenchmen inspected these glorious productions of “the land of the free and the home of the brave,” it was “Mon Dieu!” in jumps and jerks.
Size, perfection, beauty, grandeur, rarity, focused the Gallic thought in a moment, but size occupied the first and the last thought.
Bryce M. Wright, first of
At first the plan of an open case prevailed, then that was followed by the drawer system, which was urged because it kept cut light and dust. Now there is a marked return to the glass-fronted case. Large sized panes are procurable and large specimens are the better shown.
They are no more secure than the other kind. In one instance the glass doors were screwed fast at sides, top and bottom, and yet some characteristic “locals” seemed to vaporize and disappear.
A case of minerals should always be placed in “the living room” of a home. Their association begets knowledge by absorption. Cultivated brains means vitality and long life, provided the aforesaid brains will defend the stomach from the trash which too often reaches it. It is the open-air existence of the naturalist which is his saving grace.
I do not regard the charm of collecting as one pursuit to be discouraged, neither do I consider it the mistake of an educated man. The cabinet reflects the maker thereof. If he gets the best of everything, he is educationally and scientifically pursuing the best course.
The world is filled with respectable mediocrity, with half-baked people, with underdone genius, and with makeshift, quarter-sized specimens of minerals.
____________________________________

May your Holiday Season be filled with peace and love
Conference Lodging
|
Redlands Motor Lodge, Good Nite Inn,
|
Starlight Motel, 1371 W. Super 8, |
Also, if you have an RV, a trailer, or van and are self-contained, you may camp at the outer edge of the Museum parking lot. Quite a few do this, and you will not be alone. (Use Registration slip to let us know)
The San Bernardino County Natural History Museum is
located just north of the 10 Freeway, at
A map of the area from your local Auto Club will be helpful in locating the suggested motels. Some of them serve a continental breakfast, and others are near better known restaurants serving a full breakfast menu. All are located conveniently within several blocks of the Museum
Beverly Moreau, Editor
So.
FIRST CLASS
MICROBITS
Dec. 2002 – Jan. 2003
2003 Conference Edition
Meeting