Our meetings are fun, interactive and educational. A place to gather to hear from geologists, college professors and our very own rockhounds who have stories and treasures to share.
So much is learned at our meetings! Please come! We welcome new visitors who become lifelong friends!
Our monthly meetings are open to the public, but we encourage you to join the club in order to receive additional benefits including field trips, our monthly newsletter, our Annual Rock & Mineral show, our Annual Holiday Party and mineral auction.
Join Us for our Virtual Mineral Meeting, Friday, November 13, 2020. Our Guest Speaker will be Howard Heitner. Due to the current Covid-19 Pandemic, this will be a virtual meeting online. We are using https://zoom.us/
The Topic Is:
Pseudomorphs, Trickster Mineral Specimens
The word pseudomorph was first used by Hauy in 1801. In Greek it means “false shape” A pseudomorph is a mineral that has the external crystal shape of another mineral. The subject of pseudomorphs was first written about in detail by the 19th century German mineralogist Johann Blum. Pseudomorphs were later classified by the mineralogist Strunz in 1982. The talk covers the various theories of how pseudomorphs form. In some cases the second mineral is similar in composition to the original mineral. In those cases the mechanism is a chemical reaction. In other cases the two minerals are not similar and the mechanism of pseudomorph formation is more complicated. There is still controversy about the formation of some pseudomorphs. The talk is illustrated with pictures of both common and rare pseudomorphs.
Orange County Mineral Society is inviting you to a scheduled Zoom meeting.
Topic: OCMS Zoom Meeting
Time: Nov 13, 2020 06:30 PM Eastern Time (US and Canada)
Join Zoom Meeting
Meeting ID: 872 0483 3295
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Meeting ID: 872 0483 3295
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Meetings for 2020
January 10 Speaker Howard Heitner
February 14 Speaker Doc Bayne
March 13 Speaker Dr. Charles Merguerian
April 11 (This is a virtual meeting)
May 8 (This is a virtual meeting)
June 12 (This is a virtual meeting)
July 10 (This is a virtual meeting)
August 14 (This is a virtual meeting)
September 5 No Speaker / Annual Picnic
October 9 (This is a virtual meeting)
November 13 (This is a virtual meeting)
Meetings for 2019
January 11 Speaker Dan Bishuk "trace fossils"
February 8 Speaker Bill Prehoda
March 8 Speaker Doc Bayne "How Iron is made"
April 12 Speaker Dr. Charles Merguerian
May 10 Speaker Ted Johnson
June 14 Speaker Karenne Snow
July 12 Speaker Eric Orlowski
August 9 Speaker Dr. Alexander Bartholomew
September No Speaker/ Annual Mineral Picnic
October 11 Speaker Jeff Fast
November 8 Speaker Derek Yoost
December 13 No Speaker / Annual Holiday Party