Included are chapters on diamonds, corundum, topaz, spinel, beryl, garnet, tourmaline, quartz, chalcedony, chrysoprase, jasper, opal, albite, orthoclase, labrodite, jade, lapis lazuli, epidote, apatite, fluorite, hematite, azurite, malachite, turquoise, amber, cat's-eye, pearl, abalone and many others. Included are details on where these gems and precious stones may be found in California, as well as their characteristics. Also included is a chapter on California's gem mines.
Note: This edition is a perfect facsimile of the original edition and is not set in a modern typeface. As such, some type characters and images might suffer from slight imperfections or minor shadows in the page background.