Moissanite

Phenomenal & Rare Gems

Moissanite is naturally occurring silicon carbide, an exceptionally rare mineral usually found as tiny grains in meteorites, kimberlites, and a few other unusual rocks. It has very high hardness, strong dispersion, and several hexagonal or rhombohedral crystal structures.

Identity

Material or variety
Moissanite
Scientific or material identity
Silicon carbide (moissanite)
Classification
Natural mineral or mineral variety
Composition or formula
SiC
Crystal system or structure
Hexagonal
Geological or manufacturing origin
Can form in more than one geological environment, or combines several materials.
Mohs hardness
9 to 9.5
Specific gravity
3.21 to 3.22

Origins

Arizona, USA · China · Russia · Turkey · Wyoming, USA

Appearance & optical properties

colorless silicon carbide with intense spectral fire.

History & discovery

Henri Moissan found tiny crystals in the Canyon Diablo meteorite from Arizona in 1893 and identified them as silicon carbide in 1904. The mineral was named for him in 1905, honoring his chemical research. Further terrestrial occurrences were documented in Wyoming in 1958 and Yakutian kimberlite in 1959.

Uses & care

Common uses
Natural moissanite is chiefly studied as a rare mineral and as evidence about meteorites, mantle rocks, and the environments in which its tiny grains formed.

Jewellery

5 pieces of Moissanite jewellery. Learners earn each one in DigMyGem by learning words; until then it shows as a silhouette.

  • Silhouette of Canyon Diablo Ring

    Canyon Diablo Ring

    Ring

    A modern solitaire ring set with a near-colourless moissanite cut to catch fire, named for the Arizona crater where the mineral was first found in a meteorite. The stone throws more coloured sparkle than diamond.

  • Silhouette of Stardust Eternity Band

    Stardust Eternity Band

    Bracelet

    A line of small moissanites set all the way round a slim band, each one a splinter of fallen-star material grown in a laboratory. The stones flash with a fire no diamond can match.

  • Silhouette of Meteor Pendant

    Meteor Pendant

    Pendant

    A pendant holding a single moissanite in a mount shaped from meteoritic iron, joining the stone to the rock it was first found in. It is a quiet nod to the mineral's cosmic origin.

  • Silhouette of Starfall Studs

    Starfall Studs

    Earrings

    An imagined pair of stud earrings of moissanite, the mineral first found in a meteorite crater, sparkling with rainbow fire.

  • Silhouette of Star-Born Tiara

    Star-Born Tiara

    Tiara

    An imagined platinum tiara of moissanite, the mineral first found in a meteorite crater, blazing with rainbow fire.

Sources