Mineralogical Society
Southern California

953rd Meeting

February 16,th, 2018 at 7:30

Program: “Larry & Leslie – Opals Part 2”: Yowah ,Queensland, Australia

Pasadena City CollegeGeology Department, E-Building, Room 2201570 E Colorado Blvd., Pasadena

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:  “Larry & Leslie – Opals Part 2”: Yowah, Queensland, Australia

This presentation will focus on the town and mining fields of Yowah. We will have samples, information, and opal for sale.

This town and it’s adjacent mining areas are less than 1 square mile yet they provide one of the most sought after and rare forms of “boulder opal” the famous Yowah nut. With a permanent population of 70 people and the nearest town 100 miles away this is truly the classic Australian outback.

First registered in 1884 most workings were hand dug, with shafts bottoming out no deeper than 35 feet. The nut band is an ironstone layer that averages 6″ to 24″ in thickness and produce opal in ‘flash’, ‘pinfire’, and black varieties. We will talk about our time spent there.

Upcoming Events
  • March 9th- Walton Wright: Continental Drift/ Plate Tectonics
  • March 25th MSSC Board Meeting at the Carter residence
  • April 13th- Pete Goetz: American Opal Society
  • May: TBA

The MSSC is pleased to offer:

X-Dana Mineral Spreadsheet