Carlsbergite
| Carlsbergite | |
|---|---|
Carlsbergite was first described in the Agpalilik fragment of the Cape York meteorite.
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| General | |
| Category | Mineral |
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Formula (repeating unit) |
CrN |
| Strunz classification | 1.BC.15 |
| Dana classification | 01.01.20.01 |
| Crystal system | Cubic |
| Crystal class | Hexoctahedral (m3m) H-M symbol: (4/m 3 2/m) |
| Space group | Fm3m |
| Unit cell | a = 4.16 Å; Z = 4 |
| Identification | |
| Color | Light gray in reflected light with rose tint |
| Crystal habit | Oriented microscopic platelets, irregular to feathery grains |
| Mohs scale hardness | 7 |
| Luster | Metallic |
| Diaphaneity | Opaque |
| Specific gravity | 5.9 |
| References | |
Carlsbergite is a nitride mineral that has the chemical formula CrN, or chromium nitride.
It is named after the Carlsberg Foundation which backed the recovery of the Agpalilik fragment of the Cape York meteorite in which the mineral was first described.
It occurs in meteorites along the grain boundaries of kamacite or troilite in the form of tiny plates. it occurs associated with kamacite, taenite, daubreelite, troilite and sphalerite.
In addition to the Cape York meteorite it has been reported from:
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