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…
Category: Gem or Scam? Library
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…
Greenlandite
A synonym mainly used today for precious gem-quality aventurine from Greenland. But greenlandite is also an obsolete name for almandine garnet from Greenland, introduced by…
Guardianite™ / Guardian Stone™
A registered commercial name for a rock (nepheline syenite) from Table Mountain, Lincoln County, Oregon, United States. This trademarked Guardianite has been registered for Australia…
Harlequin quartz
Commercial name for quartz with red-reddish-brown flaky inclusions of hematite. The red inclusions in many quartz crystals, often referred to by sellers as lepidocrocite, are…
Healerite™
Registered trademark for a lime-green serpentine from the United States. Registered for Australia since Oct. 25, 2013, by Robert Simmons and Kathy Warner (Heaven &…
Healer’s Gold™
Unregistered commercial name for a combination of magnetite and pyrite found in Arizona, United States. Introduced by Robert Simmons (Heaven & Earth). Not to be…
Heartenite™
Registered trade name for probably a mineral of the chlorite group. The originator of the name gives the following description: ” Complex phyllosilicate mineral, containing…
Heckonite (jasper)
Commercial name for a synthetic product. So not a natural mineral, but unfortunately this is often not disclosed. Also called Rainbow Heckonite (jasper). There are…
