Agni Manitite
Commercial name for rounded pebbles of obsidian found in rivers around Malamingan, Sumatra, Indonesia. These water-rolled obsidian fragments are usually dark, almost black, but show…
Category: Gem or Scam? Library
Agnitite™
Unregistered commercial name for clear to milky white quartz with red to reddish-brown inclusions of hematite, mainly from Madagascar. The word “Agni” means fire in…
Alligator quartz
Synonym for so-called jacaré quartz, a growth form of quartz (usually smoky quartz) with many parallel crystal faces (bulges). Jacaré quartz is named after the…
Amegreen™
Unregistered commercial name for banded amethyst (also called chevron amethyst) combined with prasiolite, a green transparent variety of macrocrystalline quartz (also improperly called green amethyst).…
Amazez™
Commercial name for banded amethyst, also called chevron amethyst. The name Amazez™ is an amalgamation of the names amethyst and Azeztulite™, referring to the white…
American jade
A misleading local name for massive vesuvianite or a rock containing mostly vesuvianite. Except that the material resembles jade, there is no relationship mineralogically. Jade…
Amazon jade/stone
Misleading commercial name for amazonite, a green variety of microcline, a mineral in the feldspar group. Amazonite has no relation to jade but calling the…
Ametrine
An accepted name for a yellow-purple variety of quartz, the name being derived from the quartz varieties amethyst and citrine. According to the World Jewellery…
Amechlorite
Unnecessary commercial name for amethyst with chlorite inclusions, by Judy Hall in her 3rd Crystal Guide1 introduced. Do you have a nice example of this…
