Sphalerite
Official mineral name for a zinc sulfide (ZnS), with a characteristic resinous to submetallic luster and usually brown to black color. In pure form, sphalerite…
Category: Gem or Scam? Library
Phoenix stone
Commercial name for a white stone with blue-green flecks and black grains. The name suggests something rare and powerful, possibly inspired by the mythical phoenix…
Dragonglass obsidian
Commercial name for weathered nodules of obsidian, from the island of Milos, Greece. Dragonglass obsidian is a recently described type of obsidian discovered by Ismini…
Geraisite
A local name for a only recently identified type of natural impact glass (tektite) from the state of Minas Gerais in Brazil. The name refers…
Alum
Alum (or Dutch aluin) is a general name for compounds consisting of aluminum (or sometimes another metal with a charge of 3+) and an alkali…
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…
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…
