Potassium ferricyanide (red)
Potassium hexacyanoferrate(III), also known as potassium ferricyanide or Cyanorubin (German), is a synthetic compound with the chemical formula K₃[Fe(CN)₆]. In pure form, it forms ruby…
Category: Gem or Scam? Library
Thomsonite with mesolite
Both mesolite and thomsonite are natural minerals belonging to the zeolite group. They are known for their fine, needle-shaped crystals that often form spherical aggregates.…
Synergy 12 / 12 Synergy Stones / Twelve Stones
Commercial term for a collection of twelve specific minerals that according to some sources, are said to possess special properties, especially when used in combination.…
Mascagnite
Official name for the rare ammonium sulfate mineral with the chemical formula (NHâ‚„)â‚‚SOâ‚„. It forms a series with arcanite (potassium sulfate, Kâ‚‚SOâ‚„), where arcanite and…
Larimar
Commercial name for a solid blue variety of the mineral pectolite, found exclusively in the Dominican Republic and widely used as an ornamental stone. Also…
K2 (-azurite/granite/jasper/stone)
Commercial name for granite with round patches of blue azurite. Found on K2: the second highest mountain in the world (8,611 m) located in the…
Baked Amethyst / Heat-Treated Amethyst (HTA)
Designation for heated amethyst that turns yellow-brown as a result and often has to pass for citrine. Because real (untreated) citrine is a rare and…
Green moonstone (with garnierite)
Commercial name for a gray-green stone with (bright) green veins and sometimes with a form of bluish “flash” or pearlescent sheen. In 2021, I had…
Sakura agate / jasper / stone
Commercial name for a metamorphic rock with a unique flower-like texture. Cut objects of this stone are sold commercially under many different names, including: Cherry…
African bloodstone
Commercial name for a green-gray chalcedony with delineated pieces of red jasper and light gray chalcedony, often combined with speckles of pyrite. The stone consists…
