Carlinite
Carlinite is an IMA-recognized mineral species in the sulfide class, with the chemical formula Tl₂S.
It crystallizes in the hexagonal crystal system (space group R3).
Key properties: Mohs hardness 1; specific gravity 8.1; Dark gray to black streak; Bright metallic luster.
IMA symbol Cni, IMA status: approved, named in 1974.
Occurs as small grains in brecciated fragments of carbonaceous limestone, a result of epithermal mineralization.
It is found associated with Gold, arsenic, antimony, mercury, avicennite, organic carbon, quartz.
The name refers to the Carlin gold deposit, Nevada, USA, in which it was discovered.
Index entry. This entry combines official IMA/RRUFF species data with published physical-property data — a full written entry hasn’t been published yet.
Browse more C minerals or help write this entry.