Carnallite
III - Halogenides |
Name | Carnallite | |
Chemistry | KMgCl3·6H2O | |
Hardness | 1 - 2 | |
Lustre | greasy - vitreous | |
Colour | colourless, white, yellow, often red (hematite inclusions) | |
Streak | white | |
Density [g/cm3] | 1.6 | |
Crystal habit | orthorhombic, crystals rarely, tabular, pseudo-hexagonal | |
Cleavage, Fracture | fracture conchoidal | |
other characteristics and occurrences | coarse grained, disseminated, with halite (NaCl) and anhydrite (CaSO4), formed in marine evaporite environment | |