Frosterley Marble / Stone
Trade name for a fossil-rich limestone from Frosterley, Weardale, in northeastern England. This rock originated beneath shallow tropical seas about 330-325 million years ago, in…
Category: Gem or Scam? Library
Gaia Stone
Commercial name for man-made glass said to be made with or colored by volcanic ash from Mount St. Helens. Known primarily as Helenite, but also…
Galaxite / Galaxyite
Commercial name primarily used on esoteric websites for a stone that resembles a type of crystalline labradorite, hence also called micro-labradorite. Small feldspar crystals are…
Galena
Official mineral name for the principal ore mineral of lead. We also see the English spelling galena increasingly used in the Netherlands. Galena is found…
Garden quartz
Commercial name for quartz with various inclusions, including chlorite. Also called Shaman dream quartz. See also lodolite.
Gem Silica™
Unregistered commercial name for a combination of quartz and chrysocolla. Robert Simmons (Heaven & Earth) coined the name for this “rare” material that he describes…
Genesis Jasper™
Commercial name for a combination of hematite, magnetite and jasper found in the desert regions of western America. The unregistered trade name was introduced by…
Genesis Stone
Commercial name for Banded Iron Formation (BIF) material or tiger iron from Wyoming, United States. See also Genesis Jasper™. Several commercial names are used for…
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…
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…
