Members of the Sequoia Gem and Mineral Society, the Peninsula Gem and Geology Society, and the San Francisco Gem and Mineral Society will teach fellow Makers how to grind and polish gemstone cabochons.
What inspired you to make this project?:
We are earth science enthusiasts, rockhounds, and mineral collectors. We have fun cutting and polishing gemstones, and love to share the hobby with other people and teach them about the beauty of earth materials.