Chrysoprase stone is the most valuable variety of chalcedony. It is translucent, apple-green gemstone. The name of the mineral is derived from the Greek words chrysos meaning gold and prasos meaning leek.. Indeed, chrysoprase is usually green or bluish-green color, which is determined by nickel compounds.hrysoprase stone is the most valuable variety of chalcedony. It is translucent, apple-green gemstone. The name of the mineral is derived from the Greek words chrysos meaning gold and prasos meaning leek.. Indeed, chrysoprase is usually green or bluish-green color, which is determined by nickel compounds.
Sourdough bread is probably the most affiliated with San Francisco. Ghirardelli chocolate is another. And dungeness crab is a third. Just take a cruise on Fisherman's wharf to see why. I would also say that San Francisco is known for culinary diversity (which is not exactly what you asked, I know). Being such a point of entry for so many countries East and a town focused on food means we get great food representing regions from all over the world.
Twenty-seven miles outside of San Francisco Bay lay the Farallon Islands, a favorite haunt of great white sharks, who are drawn to the area by the abundance of food in the form of elephant seals and California sea lions. Some say that San Francisco Bay is too polluted or too brackish for great whites.