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Pyrrhotite Galena & Calcite

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SCH37702

Pyrrhotite Galena & Calcite

Ex. John J. Durkos

Description Tabs

Description
Locality: 
Santa Eulalia, Aquiles Serdán Municipality, Chihuahua, Mexico
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.9 × 6.5 × 4.6 cm
Description

A large and unusually aesthetic pyrrhotite from old finds in 1950's-1960's with brassy, hexagonal crystals to 3.4cm forming a cluster with a slight calcite accenting and some tiny dull galena crystals. Exquisite architecture, form and sharpness with a pretty bronze luster.

Ex. John J. Durkos. A beautiful old specimen originally labeled as coming from Panasqueira, this is obviously a Mexican Pyrrhotite and a choice one!

Mineral Data
What's on the rock

Pyrrhotite

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

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White
schani

Seller Information

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