Name:

siegenite

A photo of the mineral siegenite

Class:

Sulfides

Chemistry:

(Co, Ni)3S4

Color(s):

steel-gray, silvery sometimes with a brownish look, metallic

Hardness:

4.5-5.5

SpecGrav:

4.5-4.8

Fracture:

uneven

Cleavage:

imperfect

Crystal:

Isometric; octahedrons, often botryoidal

Envronment:

hydrothermal deposits

Association:

chalcopyrite, pyrite

Locals:

MO., USA / Germany / Canada

Misc:

locality name from, Siegen, Germany.

Photos
& Locals:

1.) Westfork Mine, Reynolds Co., Missouri
2.) Westfork Mine, Reynolds Co., Missouri

3.) Westfork Mine, Reynolds Co., Missouri

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