Magical Moissanites
Moissanite — Unique Gemstone brought to you
Natural moissanite (silicon carbide, SiC) is extremely rare. It's very durable — about 9.25 on the Mohs hardness scale — and is known for having strong brilliance and colorful "fire." That extra rainbow sparkle can sometimes help you recognize a larger moissanite.
Origin
Moissanite was first identified in 1893 by French scientist Henri Moissan, who examined mineral samples from the Canyon Diablo meteorite crater in Arizona. Later over the years they found out that Moissanite was Silicon Carbide and named it after the scientist Henri.
How to test the "Realness" of Moissanite
A better moissanite/diamond tester checks additional properties such as electrical conductivity. Under magnification, another important clue is double refraction: looking through moissanite at the correct angle can make facet junctions appear doubled.
Fun Facts
Its optical properties are particularly interesting: moissanite is doubly refractive, unlike diamond, and has very high dispersion. Its specific gravity is approximately 3.22, compared with about 3.52 for diamond, meaning equal-sized moissanite and diamond stones don't have exactly the same weight.