Hauerite

hauerite

sulphur

realgar

gypsum

Images

Formula: MnS2
Sulphide, pyrite group, manganese-bearing mineral
Specific gravity: 3.463
Hardness: 4
Streak: Brownish red
Colour: Reddish brown, black
Common impurities: Fe,Si
Environments

Igneous environments
Sedimentary environments
Volcanic sublimates

Hauerite is a low-temperature mineral commonly associated with volcanic waters, in clay deposits rich in sulphur, and from decomposed extrusive rocks. Associated minerals include sulphur, realgar, gypsum and calcite (HOM, Webmin).

Localities

The type locality is Kalinka, Vígľašská Huta - Kalinka, Detva District, Banská Bystrica Region, Slovakia.

At the Destricella Mine, Raddusa, Metropolitan City of Catania, Sicily, Italy, hauerite crystals to 4 cm and larger were found embedded in a layer of clay at 50 metres depth under layers of gypsum, sulphur and limestone. The mine is now totally inaccessible (Minrec 43.2.188-190).

In Texas, USA, hauerite is found in salt domes (Dana).

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