Geology, Rocks & Gems!

the 3rd Annual S.F. GeoBlitz
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Come to our all-ages "Geology & Rockhounds 101" as the SF Gem & Mineral Society returns with a program on local geology, minerals & gems, and field trips. At the SFGMS building in the Sunset District, you can learn to cut & polish stones and make jewelry. The event is a lead-in to their annual show August 4-5 at the Hall of Flowers in Golden Gate Park.

"Rockbrarian" Robert will show examples of rocks – quartz, jade, gems, metallic ores and fossils found in this part of California – and talks about the "rockhound" scene: collecting, gem & mineral shows, "What can I do with my rocks?", "What are healing crystals?", and more. Bring a "mystery rock" to be identified, a puzzling polished stone to learn about, or a treasure to show. See the specialist books, magazines, maps and websites where you can learn even more. Come for both learning & fun!

It all ties in with SF Public Library's "Summer Stride" reading/activities program (, promoting reading, science learning, and visits to parks and Nature.

This is a Green Stacks event sponsored by the San Francisco Department of the Environment.

This is a Making & Creative Arts program from SFPL. Create with us- from clothes to robots to so much more.

Summer Stride 2018

May 19 – August 19, 2018

Upcoming Events

Decorating the Refrigerator
Thursday, January 17, 2019, 10:00 am
Glen Park, Glen Park Meeting Room
Coloring Coffee Time
Thursday, January 17, 2019, 10:00 am
Ocean View, Ocean View Meeting Room
Treasure Island Stop
Thursday, January 17, 2019, 1:00 pm

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Thursday, January 17, 2019, 6:00 pm
Excelsior, Excelsior Meeting Room
Knit Happens
Saturday, January 19, 2019, 1:30 pm
Main Library, Latino/Hispanic Rms A & B
Needle Felting
Saturday, January 19, 2019, 2:00 pm
Presidio, Presidio Meeting Room

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Current Exhibits

SF Wildlife
Through Thursday, March 28, 2019
Main Library, Government Information Center
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