Specific gravity: 4.91
Colour: Black, steel-grey with reddish tone
Lautite occurs in hydrothermal veins formed at a moderate temperature (Webmin, HOM).
At Gabe Gottes mine, France, lautite is associated with arsenic, bismuth, tennantite, löllingite, rammelsbergite, proustite and quartz (HOM).
At Lauta, Germany, lautite is associated with arsenic, tennantite, proustite, chalcopyrite, galena and baryte (HOM).
At Niederbeerbach, Germany, lautite is associated with kutinaite and paxite (HOM).
The type locality is the Rudolph Shaft, Lauta, Marienberg District, Erzgebirgskreis, Saxony, Germany, where lautite is associated with tennantite, arsenic, proustite, chalcopyrite, galena and baryte (Mindat).
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