Join Us At Our April Monthly Meeting


Hosted by Bob Kozak

Friday, April 6th, 2018, 7:00 PM

At the SFGMS Clubhouse.

Generally speaking, we're nuts about jade in this club, so lets celebrate "The Stone of Heaven" by looking forward to the upcoming "Monterey Bay Jade Festival" which will occur at the historic Custom House Plaza in downtown Monterey, CA on the weekend of May 18-20th (Friday-Sunday). As many of our members will attend, you can get the nitty-gritty on the festival and we'll have some fun getting ready for the event with with an evening of jade show and tell.

Bring your treasured jade specimens, jewelry, pictures and stories to share. We'll cover many past jade field trips to places like Wyoming, Covelo, Clear Creek, Big Sur, and we'll explore some of the many famed jade localities around the world like The Yukon and British Columbia in Canada, New Zealand, Burma, Guatemala, etc.

As Always, admission is free - the public is invited.

It's Happening At Our Clubhouse

4134 Judah Street, San Francisco,
(between 46th and 47th Avenues). 415-564-4230

Attendance at this meeting will qualify persons interested in joining our club to attend the membership meeting scheduled for April 9th at 7:30PM to make application. Scroll down for further information about becoming a member.

SFGMS Open House

At the San Francisco Gem & Mineral Society

Saturday, April 21st, 10 am to 3 pm.

Learn about our Society, meet members and learn about membership.

There will be rocks, gems, crystals, mineral specimens, handcrafted jewelry, collectables, beads & beaded items, arts and crafts and more.

Open to the public - admission free

Attendance at this event will qualify persons interested in joining our club to attend the membership meeting scheduled for May 7th at 7:30PM to make application. Scroll down for further information about becoming a member.

At our clubhouse - 4134 Judah Street, San Francisco, (between 46th and 47th Avenues). 415-564-4230

Interested in Membership?

Join our club and enjoy its many benefits, including learning lapidary skills, making jewelry, going on field trips to collect rocks, minerals and gems, meeting and socializing with wonderful like-minded enthusiasts, use of club resources and tools, and our focused library collection. We are dedicated to the study and enjoyment of all things related to the earth sciences. Potential members are required to attend a General Meeting or a scheduled social event (like an Open House) to introduce themselves, and then attend a scheduled monthly Membership Meeting to complete their application.

Click here for information about how to join our Society

Our next membership meeting is

Monday night, April 9th at 7:30 pm.

SFGMS clubhouse:
4134 Judah Street, San Francisco
(between 46th and 47th Avenues). 415-564-4230

1959 - Looking back at...

The Jade Clock

There are plenty of "jade clocks" to be found (just do a simple search on Google), virtually all made the conventional way - quartz or mechanical movements made with metallic parts - housed in or decorated with jade. To our knowledge, however, there is no other truly jade clock in existence than the masterpiece conceived and created by members of the San Francisco Gem & Mineral Society more than 50 years ago.

Our jade clock is a full sized grandfather clock with a 16-jewel jade movement and jade strike train. Every piece of the clock was carefully designed, mocked-up in wood and tested for fit before being cut, carved and polished in the actual jade. The clock's 16 jewels were crafted from Chatham emeralds. The clock is housed in a case made of American black walnut and clear Plexiglas to allow complete visibility of the movement and strike train, and topped with spherical jade finials. Countless thousands of hours and hundreds of pounds of valuable jade, much of it from rare California localities, were donated to the project in an unprecedented team effort over a five year period of time.

The clock was first displayed at the California Federation of Mineralogical Societies' show held in San Mateo in 1959, sans strike train which was subsequently completed in time for the SFGMS show of 1962. The entire project was documented in a series of articles by club members Helen Stiles Chenoweth and Ted Bhend in the Lapidary Journal, which were then woven into a 12-page brochure appropriately titled "The Jade Clock." It fully documents the entire process and credits the dedicated club members behind this remarkable achievement. A PDF file of the brochure can be downloaded by clicking here. (This is a 3.3 MB file, it may take a few moments to display).

Though uncertain at this time, there is some hopeful discussion underway about the possibility of dusting off the heavy jade clock and (very carefully) moving it into the Hall of Flowers for the 2009 show, to be featured with our other jade spectaculars - the jade table and the jade train, which includes a town and station... all made of jade!


Not too long after posting the above information about the Jade Clock we received an email from Mary Jacoby, the Great Granddaughter of one of the principal designer/builders of the clock, Henry Reinecke. Mary spoke of Henry's great stories and his well earned pride in the Jade Clock. She still has, and generously offered to send us a copy of a wonderful article by Judy Vaughn from the San Francisco Sunday Chronicle, Bonanza Section, dated October 11, 1964. You can download a PDF file of this article by clicking here. (This is a 3.5 MB file, it may take a few moments to display). We are grateful to Mary for her contribution and share her fond memory of her Great Grandfather!

1976 - Looking back at...

The Jade Train

Jade train engine & tender

It has been suggested that to mention the San Francisco Gem & Mineral Society in certain circles is to evoke images of jade, and it is understandable why this might be. Backtracking through the club's history reveals a definite pattern of enthusiasm for "the stone par excellence" demonstrated through an impressive number of club projects. We are by no means limited to jade on our projects, it has just worked out this way - which says a lot about the mystique jade has generated for thousands of years from ancient China to Mezzo-America, British Columbia to New Zealand.

In the 1970's, the allure of jade prompted club members to collaborate in the creation of a 1/4 scale (1/4 inch = 1 foot) electric train made entirely (well, almost) of jade. It was completed in time to be featured at the California Feferation of Minerolagical Societies' "Spirit of '76" annual show at San Francisco's Cow Palace on the Bicentennial weekend of July the 4th, 1976, and hosted by the SFGMS.

The train, which includes the engine, a tender (coal car), a passenger coach and a combination passenger coach and baggage car, is constructed of hundreds of precision crafted parts of Wyoming black jade, Porterville jade, Mariposa jade, Clear Creek jade, Burmese jadeite, British Columbia jade, red jasper, petrified wood and quartz from Brazil and Uraguay. All the materials were donated by the generous members and friends of the SFGMS, along with the thousands of man hours required to work and assemble the components. The train, trimmed with gold-plated engraved silver signage, a silver cow-catcher and numerous cast silver parts ran on a 4 foot by 8 foot oval track at the Spirit of '76 show.

A partial list of participants in the project include:

Jade train, with tender, coach and baggage car sits on track in front
of the town made up of jade buildings.

Completion of the train spurred yet another jade "project" in the crafting of a western style railhead town, also constructed primarily of jade. We'll add details about the "jade town" sometime soon. An article titled "The Jade Train" by former club president Faith E. Riesen documenting the train with much greater detail is available (532 KB downloadable PDF file - click the link) from the June 1976 issue of "Jewelry Making, Gems and Minerals" magazine. The train and town will be displayed at the SFGMS's 55th Annual Show and Sale in Golden Gate Park, August 1 & 2, 2009.

1982 - Looking back at...

The Chinese Zodiac Intarsia Project

Too often, time tends to erode the accomplishments of the past, and it's easy to forget both what we've done and what we can do. In 1982, members of the club's intarsia class at SFGMS undertook a project to create 12 plaques depicting the symbols of the Chinese zodiac in stone. Those who make it to our annual show in August are sometimes lucky enough to view one or two of these delightful creations as they are occasionally brought out for display. In light of a current effort to get a new "club project" underway, it was serendipitous to come across an article from the January 1983 edition of Gems and Minerals magazine, written by club member Faith E. Riesen, titled "The Year of the Boar," telling the story of the Intarsia Project.

The 12 plaques were made, using all kinds of materials to craft the creatures of the Lunar Calendar, from magnesite to opalite, verde antique to tiger-eye, rhodenite to sodalite, by the following club members:

The article describes all aspect of the project, including materials needed, design, special tips, techniques and equipment. You can download a scanned copy of the article here. (This is a downloadable PDF file, 1.3 MB). The magazine with the original article is in our library in the clubhouse (along with a wealth of other books, guides, tapes and magazines).

1994 - Looking back at...

The "Jade Table"

Well, that's what we call it generically, but to be correct it is actually named The Intarsia Table. Seven years in the making, it was a club project, primarily of jade but also using black granite and magnesite. It was featured in an article written by club member and project designer Phil Mutrux in Rock and Gem Magazine in August, 1994. Like the Jade Clock, above, it's appropriate to focus on the table as we prepare for our 2009 annual show in August featuring all things jade.

Intarsia is defined as an elaborate form of marquetry using inlays in wood, stone, metal, or glass - especially as practiced in 15th-century Italy. The "Jade Table" is sufficiently elaborate to fit this description. It is 7-1/2 feet long and 2-1/2 feet wide and weighs hundreds of pounds. Three 30-inch square panels, weighing 80 pounds each, are supported in a custom fitted oak frame mounted atop a custom fabricated wrought iron base. Each panel is highlighted with four finely crafted "corner-intarsias" of flora and fauna exactingly made by different club members to fit Phillip Mutrux's design. Two end panels featuring chess boards flank a center panel depicting the club's logo, including remarkably fine lettering carved from stone.

All of the time and material that went into the table were donated by club members. Over the seven year span of the project many club members participated but the major "players" were Phil Mutrux, Walter Koniuk, Norman Stone, Frank Gemmell, Don Harris and the following "intarsia artists" who produced the corner details:

The intarsia table will be on display at our August Gem Show at the Hall of Flowers in Golden Gate Park on August 1st & 2nd, 2009. A downloadable PDF file showing a copy the Rock and Gem feature is available by clicking here. (This is a 900 MB file). The accompanying Phil Mutrux article is available here (also in PDF format (92 KB)).

Robin Crabill's Book Reviews...

Club member Robin Crabill writes excellent reviews of books and other material of interest to the Society, which are published in the club newsletter, The Mineralog,. These are now available on the website to the gem, mineral and lapidary world at large. click here to view.

Mineral Gallery...

A picture gallery of mineral specimens from the club's collection has been added, click here to view it. Additional pictures will be added in the future.

Network with SFGMS members on Facebook...

Notice to Members:

For those interested in keeping track of the the club's Board of Directors, the minutes from the monthly meetings are always posted on the bulletin board in the clubhouse for your perusal. Keep an eye on the bulletin board for other notices and information that hasn't made it into the Mineralog or on to the web site.

Website Updates

To be a more valuable resource to everyone involved with the hobby of rocks, gems and minerals, our website is being updated all the time. Check back often - you may sometimes see exposed framing, dust and rough plaster, but please bear with us - most of the content remains accessible even as changes are made.

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The San Francisco Gem & Mineral Society, Inc.

4134 Judah Street

San Francisco, CA 94122


Guests and visitors are welcome at all meetings which are usually held
on the first Friday of each month, 8 pm at the clubhouse.

Click here for a map to the clubhouse

Please call for more information.