Girasol quartz
Commercial name for a quartz that exhibits an opalescent luster with a subtle glow or sparkle that appears to move across its surface when it…
Category: Gem or Scam? Library
Gogotte / Goddess Stone
Gogotte is a French name for an unusual sandstone concretion, a sedimentary rock composed almost entirely of quartz grains cemented together by silica. These Gogottes…
Golden Healer
Commercial name given to quartz with a natural golden yellow to orange-brown coating or yellowish inclusions. Usually the color is caused by traces or a…
Goldstone
Century-old trade name for a man-made glitter-containing glass, sometimes sold as a natural “gemstone. Original goldstone consists of tiny copper crystals dispersed in the glass.…
Green Fire Azeztulite™
Unregistered commercial name for a bicolored rock from New Zealand, consisting of green matrix (possibly chlorite or fuchsite containing) with veins of white quartz. Obviously…
Gray moonstone
Commercial name for a gray, unspecified feldspar with a form of “flash” or pearly luster. Sometimes this is ‘true’ moonstone, but in many cases that…
Green amethyst
Misleading name used for prasiolite, a green transparent variety of macrocrystalline quartz. Sometimes found in combination with amethyst (e.g. in Poland and Canada) and therefore…
Green aventurine
Name for a quartz variety with inclusions of the green mica variety fuchsite. Light to medium green is the most common color of aventurine. Since…
Green obsidian
Commercial name for man-made glass said to be made with or colored by volcanic ash from Mount St. Helens or another volcano. Man-made “volcanic” glass…
Green opal
Commercial name for a green stone from Madagascar that has been on the market since 2014 and is sold as rough pieces as well as…
