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.
California rolls, consisting of avocado, imitation crabmeat, and mayonnaise encased in rice with sesame seeds on the outside, are an excellent example of Japanese American food. The rolls were invented by Japanese chefs in Los Angeles during the 1970s for Americans who were squeamish about eating raw fish. California rolls became a popular addition to Japanese restaurant menus in the United States during the 1980s, and there were eventually exported back to Japan, although many sushi purists eschew them, as they were not a traditional Japanese food.