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Pyrite Psm Pyrrhotite

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CLB86864

Pyrite Psm Pyrrhotite

Feather Pyrite
Pseudomorph

Description Tabs

Description
Locality: 
Neudorf, Harz Mountains, Lower Saxony, Germany
Size Range: 
Cabinet (10-18 cm)
Size: 
11.5 × 6 × 1 cm
Description

A very fine cut and polished slice of some of the finest and rarest pseudo-morphed materials worldwide. Feather pyrite is only known from this one location worldwide. Those incredibly beautiful dendrite-like aggregates in dolomite-calcite-matrix shape winter-landscapes with leave-less bushes of silver-colored shiny pyrite when cut and polished. Looks like expressionistic art. The locality is long defunct.

Mineral Data
What's on the rock

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

Pyrrhotite

Formula: 
Fe1-xS (x = 0 to 0.17)
Strunz: 
2.CC.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0

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