Gallery

Selected specimens from the club's collection.

Click on the images for a larger version, which will appear in a separate window.

Native Copper
Keweenaw County, Michigan

25.5 x 21.5 x 12.5 cm

Prehnite
Poona, India

11.25 x 7.5 x 7.5 cm

Adamite
Mapimi, Mexico

8.75 x 5 x 1.3 cm

Dumortierite Crystals (rare) & Slab
Rochester Mining District, Pershing Cty., Nevada

Slab: 9 cm x 19 cm

Crystal Specimen: 21.5 x 23 x 5 cm

Cobaltian Dolomite
Tsumeb (formerly Southwest Africa)

12.5 x 7.5 x 6.5 cm

Geode, Calcite on Quartz
Keokuk, Iowa

16 x 16.5 x 9.5 cm

Stromatolite (?)
prob. Fossil Algae

Location unknown

19 cm x 11.5 cm

Pyrite in Slate
North Austrailia

12.5 x 10 x 4 cm

(Pyrite Sphere is 4 cm diameter)

Lepidolite (botryoidal)
Peru

12.5 x 6.25 x 7.5 cm

Celestite Geode
Katsebe, Madagascar

21.5 cm x 14 x 14 cm

Azurite and Malachite
Bisbee, Arizona

6.25 x 5 x 3 cm

Chatham Ruby
(Lab grown ruby crystals)

Chatham, San Francisco, California

9 cm length

Azurite
Morenci, Arizona

10 x 6.25 x 4.25 cm

Amethyst
Veracruz, Mexico

9.5 x 6.25 x 4 cm

Calcite and Pyrite
Huanzla, Peru

10 x 7.5 x 3 cm

Variscite
Utah

11.5 x 7 x 7.5 cm

Emerald and Graphite
Brazil

15 x 11.5 x 6 cm

Benitoite and Neptunite
San Benito County, California

21.5 x 12.75 x 4 cm

Chrysocolla and Quartz
Arizona

16.5 x 17.5 x 10 cm

Jade
Covelo, California

9 x 7.5 x 2 cm

Jade
Leech Mountain, California

12.5 x 4.5 x 5 cm

Serpentine with Copper
Eureka Area, California

20 cm x 12.5 cm slab

Jade, Vonson Blue
Marin County, California

13/5 x 10 x 6.25 cm

Agate Geode

Brazil
20 x 10 x 11.5 cm

The San Francisco Gem & Mineral Society, Inc.

4134 Judah Street

San Francisco, CA 94122

415-564-4230

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

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	Native Copper Keweenaw County, Michigan 25.5 x 21.5 x 12.5 cm
	Prehnite Poona, India 11.25 x 7.5 x 7.5 cm
	Adamite Mapimi, Mexico 8.75 x 5 x 1.3 cm
	Dumortierite Crystals (rare) & Slab Rochester Mining District, Pershing Cty., Nevada Slab: 9 cm x 19 cm Crystal Specimen: 21.5 x 23 x 5 cm
	Cobaltian Dolomite Tsumeb (formerly Southwest Africa) 12.5 x 7.5 x 6.5 cm
	Geode, Calcite on Quartz Keokuk, Iowa 16 x 16.5 x 9.5 cm
	Stromatolite (?) prob. Fossil Algae Location unknown 19 cm x 11.5 cm
	Pyrite in Slate North Austrailia 12.5 x 10 x 4 cm (Pyrite Sphere is 4 cm diameter)
	Lepidolite (botryoidal) Peru 12.5 x 6.25 x 7.5 cm
	Celestite Geode Katsebe, Madagascar 21.5 cm x 14 x 14 cm
	Azurite and Malachite Bisbee, Arizona 6.25 x 5 x 3 cm
	Chatham Ruby (Lab grown ruby crystals) Chatham, San Francisco, California 9 cm length
	Azurite Morenci, Arizona 10 x 6.25 x 4.25 cm
	Amethyst Veracruz, Mexico 9.5 x 6.25 x 4 cm
	Calcite and Pyrite Huanzla, Peru 10 x 7.5 x 3 cm
	Variscite Utah 11.5 x 7 x 7.5 cm
	Emerald and Graphite Brazil 15 x 11.5 x 6 cm
	Benitoite and Neptunite San Benito County, California 21.5 x 12.75 x 4 cm
	Chrysocolla and Quartz Arizona 16.5 x 17.5 x 10 cm
	Jade Covelo, California 9 x 7.5 x 2 cm
	Jade Leech Mountain, California 12.5 x 4.5 x 5 cm
	Serpentine with Copper Eureka Area, California 20 cm x 12.5 cm slab
	Jade, Vonson Blue Marin County, California 13/5 x 10 x 6.25 cm
	Agate Geode Brazil 20 x 10 x 11.5 cm