The Mineralogical Society


Southern California

970th Meeting

 July 12, 2019

Program : Opal Identification

Presented by Peter Goetz

June 21, 2019 at 7:30 PM

Pasadena City College
Building E, Lecture Hall, room 220
1570 E. Colorado Boulevard
Pasadena, California

About us…

The Mineralogical Society of Southern California is dedicated to the dissemination of a general knowledge of the mineralogical and related earth sciences through the study and collecting of mineral specimens. Organized in 1931, it is the oldest mineralogical society in the western United States.
The MSSC is a scientific non-profit organization that actively supports the Pasadena City College Geology Department, its associated Dana Club,, and the Field Science Scholarship Fund. Support is also given to the San Bernardino County Museum of Natural History and Mindat.
The MSSC is affiliated with the California Federation of Mineralogical Societies and American Federation of Mineralogical Societies.

About the Program:  Opal Identification Presented by Peter Goetz

Topics covered: Opal Identification: Characteristics of Opal from the main source locations i.e.:  Queensland, South Australia, and New South Wales.  Geologic reasons on why they are different. What to look for when buying Opal rough and finished stones, as well as Opal jewelry.

I will bring some examples of Opal from different areas

Upcoming Events

  • July 13 & 14: Members Only Rock Sale  Event cancelled
  • August, 2019: MSSC Annual Picnic
  • September 13, 2019: :  Eric Scerri:  A Tale of Seven Elements
  • September 15: MSSC Board Meeting at the Carter Residence
  • October 11, 2019: Karin Rice: Geology of Rancho La Brea/ LA Brea Tar Pits
  • November 8, 2019: Renee Newman: “The Allure of Diamonds”
  • Field Trip:  2ndhalf of September, 2019 (Exact date to be announced) Nevada’s Goodsprings District
  • Field Trip Details, click here to go to field trip page

The MSSC is pleased to offer:

X-Dana Mineral Spreadsheet

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