Diaphorite

minerals

sphalerite

miargyrite

pyrargyrite

Formula: Ag3Pb2Sb3S8
Sulphosalt
Specific gravity: 6.04
Hardness: 2½ to 3
Streak: Steel-grey
Colour: Grey, steel-grey
Common impurities: Fe,Cu
Environments:

Hydrothermal environments

Diaphorite occurs in hydrothermal veins formed at moderate temperatures. Associated minerals include galena, sphalerite, miargyrite, pyrargyrite, pyrite, siderite and quartz (Mindat, HOM).

Localities

There are two co-type localities:
Příbram District, Central Bohemian Region, Czech Republic
and
Neue Hoffnung Gottes Mine, Bräunsdorf, Niederwiesa, Mittelsachsen, Saxony, Germany

At the Van Silver Property, Brandywine Creek, Vancouver Mining Division, British Columbia, Canada, diaphorite as black crystals to 5 mm long occurs most frequently in galena-rich veins, often intergrown with other sulphide minerals. Some individual crystals of diaphorite are perched on colourless quartz crystals (Minrec 31.3.225-226).

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