natural semiprecious stones and other minerals

2016 adornment agate amethyst ametrine and banded blue bright carnelian chalcedony chanthaburi chrysolite chrysoprase citrine crystal decorative fancy garnet gemstone geology glisten green jasper jewel lapis lazuli malachite market miner mineral minerals natural onyx opal other pebble peridot pink polished precious province quartz rhodolite ruby sapphire scapolite semiprecious songea spessartite star stones tanzanite thailand topaz tourmaline transparent tsavorite yellow zircon