Cinnazez™
Registered trade name for a combination of cinnabar and white quartz. The quartz in this case is referred to as Azeztulite™. Since Oct. 25, 2013,…
Category: Gem or Scam? Library
Citrine
Mineralogical name for a yellow-brown or yellow-green variety of quartz. The cause of the color is still under debate. Most “true” citrine gets its yellow…
Lemon chrysoprase
Misleading name used for a nickel-bearing variety of magnesite from Australia. Thus, it is not chrysoprase. Chrysoprase is a nickel-containing variety of chalcedony, and magnesite…
Cal silica / calsilica jasper
Commercial name for a man-made product, so not a natural mineral! But that is often not disclosed. It consists of calcium carbonate, plastic and paint…
Blue jade or jadeite
A blue amphibole-rich rock composed mainly of potassiumrichterite and sold as a simulant for jade or nephrite. So this is another example of using the…
Colombianite
Commercial name for rounded stones of weathered obsidian found in Colombia, mainly in the Valle del Cauca region around the Cali Crater. These black glassy…
Blue quartz
Designation used primarily for blue solid quartzite-like material from Bahia, Brazil. This material can have a veined or speckled appearance, ranging from gray-blue to bright…
Colorado jade
Misleading commercial name for the green microcline variety amazonite (a mineral from the feldspar group) commonly found in Colorado, United States. No relation to jade,…
Lemon Quartz
Commercial name sometimes used for citrine, but usually refers to a popular light yellow/green variety of irradiated and heated smoky quartz from Brazil or quartz…
