Guests are always welcome at our meetings!  They are held on the first Wednesday of the month (excluding holidays) at 7:30 PM at the Oxnard Performing Arts Center (map below).  The format includes an educational presentation, followed by refreshments, and a short business meeting. 

Our Pebble Pup meetings are held on the first Wednesday of the month (excluding holidays) at 6:00 PM – 6:45 PM.

Our current classes are canceled.  We will inform our students when classes are resumed.

The 2020 National Fossil Day Logo is inspired by the rich diversity of Permian marine fossils found at the Guadalupe Mountains & Glass Mountains of west Texas & New Mexico. The Permian Period (299 to 252 million years ago) represents the last geologic period of the Paleozoic Era, which ended with a massive extinction event at the boundary marking the end of the Permian & the beginning of the Triassic Period & the Mesozoic Era.

National Fossil Day Art Contest

The Oxnard Gem & Mineral Society is an official National Fossil Day Partner!

The National Park Service and National Fossil Day partners are sponsoring an art contest to celebrate the 11th annual National Fossil Day on Wednesday, October 14, 2020, during Earth Science Week.

The theme for this year’s art contest is: “Life of the Paleozoic Oceans!” For this theme we would like contest participants depict aquatic organisms from the Paleozoic oceans, particularly those found in the United States of America.

For more information Click here:

Click Here for Official Entry Form:

All submissions must be received by mail by 5 p.m. EST, Friday, October 2nd, 2020.

Largest Pink Diamond discovered at Argyle Diamond Mine, Australia

August 5, 2020 – Australia’s Argyle Mine, the World’s Primary Source for Pink Diamonds

The Argyle Diamond mine was discovered in 1979 in an extremely remote area of Western Australia.  It is one of the richest diamond mines in the world and the source of almost all of the world’s natural pink diamonds.

Geologist Dick Weber was able to visit and photograph this mine during his year-long “walkabout” in Australia.  He will tell the fascinating story of the exploration that lead to the discovery of this deposit.  He will also describe the geology of the formation of the lamprolite pipe that forms the host rock for these unusual multicolored diamonds and their connection with our own U.S.  diamond deposit in Arkansas.

July 1, 2020 – Rare and Unusual Gemstones of California

California is an extraordinary state for rockhounding.  Geological forces have created one of the widest varieties of rocks and minerals found in any state.  Known as the ‘Golden State’, California has named Gold as its state metal, Serpentine as the State rock and Benitoite as the State gemstone.  This talk will feature benitoite, lapis lazuli and vesuvianite.  Our presenter will be Geologist Walter Lombardo of the Nevada Mineral & Book Company.

We will be holding the July OGMS General Meeting online.  We will be using “Go To Meeting” to host the meeting.  I will “open the doors” at 7:00 p.m. We will start the meeting at 7:30 p.m.

Missed the meeting?  See the recording.

June 3, 2020 – “Magical Obsidian of Davis Creek”  7:00 p.m.

We will “open” our doors at 7:00 p.m. to allow our Members to socialize.  We will begin the meeting at 7:30 p.m.  Terry Wilson will show us colorful obsidian collected on the 2018 CFMS trip to Davis Creek, California. Her talk will outline the trip itself, the various types of obsidian found in the area, and include tips for working with obsidian. Terry has exhibited rainbow obsidian in the last two Ventura County Fairs, cabochons showing the cat-eye effect with rainbow obsidian, and rainbow obsidian in the rough, respectively.   Missed the meeting?  See the recording.

The Gallery will be closed until further notice due to recent events.  The Gallery will be hosting virtual lecturers.

September 20, 2020, 2:30 p.m.
Free Lecture: Rocks and Minerals from Stars

For more information visit:

National Park Service

2020 Fee Free Days on Federal Public Lands

Here are the 2019 fee free days offered for recreation sites under the management of the National Park Service and the U.S. Forest Service.  While many parks, facilities and services associated with these agencies are free, some require a fee. Recreation fees, authorized by the Federal Lands Recreation Enhancement Act, enable federal land management agencies to reinvest in the management of various recreation sites.

2020 Fee Free Days

January 20 – Birthday of Martin Luther King, Jr.
April 18
 – Start of National Park Week / National Jr. Ranger Day
August 25 – National Park Service Anniversary
September 68 – National Public Lands Day
November 11 – Veterans Day

Death Valley National Park Fossil Thieves

$1,000 Reward – Death Valley National Park

Fossil Thieves stole several fossilized footprints, which had been left in a lakebed by mammals and birds, were missing. Now, Ryan F. Mandelbaum reports for Gizmodo, the National Park Service is asking for the public’s help in identifying a group of backpackers who may have information on the ancient tracks.  In a statement, the National Park Service released the photos of three men who might have witnessed the crime or have knowledge about the disappearance of the footprints. Investigators are offering an award of up to $1000 “for information leading to the identification, arrest, and conviction of those responsible,” the statement reads. According to Mandelbaum, investigators are planning to interview visitors who frequented the Park at the time of theft, in the hopes that someone will be able to provide valuable clues.

Destroying—or pilfering—the property of national parks is prohibited by law. “It’s illegal to collect fossils, rocks, or anything else in National Parks,” Park Superintendent Mike Reynolds said in a statement about the fossil thefts. “The purpose of National Parks is to conserve the landscape and everything it contains for the next generation. I ask that visitors come and enjoy all there is to see, and to leave it unimpaired for others to enjoy.”

The National Park Service has asked anyone with information about the stolen fossils to call the Investigative Services Branch at 1-888-653-0009.

The Oxnard Gem & Mineral Society meets at the:

Oxnard Performing Arts Center
Thousand Oaks Room
800 Hobson Way
Oxnard, California 93030