Introduction: Gem or Scam?
On this introductory page, I explain exactly what "Scammite" (Belazeriet in Dutch) means, discuss different forms of Scammite, and how the Gem or Scam…
Category: Gem or Scam? Library
Names of minerals and gemstones
Why is correct naming of gemstones and minerals important? Commercial names and fancy names can cause confusion. It also highlights legal aspects and …
Research
The compilation of the online "Gem or Scam" library was preceded by extensive research, consulting various sources. The process included analyzing com…
Consequences of Scammite
Learn about the consequences of "Scammite", including confusion, health risks and legal liability due to misleading naming. Be aware of blaming and sh…
Fireworks Stone
Commercial name for a decorative rock that has appeared in the international mineral and gemstone market since about 2019. The material is usually sold as…
Alien Amethyst
Trade name for amethyst with red hematite inclusions from India, often with so-called “elestial growth,” phantoms, partial overgrowth and a natural matte surface texture. Sometimes…
Owyhee (blue) opal
Commercial trade name for a form of ‘common’ blue opal (common means without play of color) from southeastern Oregon and southwestern Idaho in the United…
Volcano agate
Commercial (fantasy) name for a gray agate/chalcedony from China known for strong green fluorescence under UV. There is no indication that this is fake or…
Hemimorphite
Official mineral name for a hydrated zinc silicate with the chemical formula Zn4Si2O7(OH)2 -H2O formed mainly in the oxidation zones of zinc-bearing ore deposits. Hemimorphite…
Harleyite
Commercial name for a motley colored artificial material that appears on the market as cabochons, beads, ornaments or raw pieces, especially among Harley-Davidson motorcycle enthusiasts…
