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Dolomite Pyrrhotite Cubanite Albite & Quartz

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MNT502808

Dolomite Pyrrhotite Cubanite Albite & Quartz

ex P. Muhl collection, Herdorf, GER
Classic Locality

Description Tabs

Description
Locality: 
Morro Velho Mine, Nova Lima, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 6.2 × 3.8 cm
Description

A 1970s classic from this famous gold mine which produced excellent specimens. This one is a remarkeable combo of transparent to translucent whiteish greiysh striated lenticular rhombs of dolomite hosting innumerable brassy brown pseudohexagonal thin crystals of pyrrhotite, lots of small golden to brassy cubanite crystals, a clear quartz crystal and as icing on the cake a glassy lustrous tabular twinned albite crystal. Exceptional paragenesis specimen in good condition, from the 1970s.

Mineral Data
What's on the rock

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

Pyrrhotite

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

Cubanite

Formula: 
CuFe2S3
Strunz: 
2.CB.55a
Crystal System: 
Orthorhombic
Hardness: 
3.5
Type Locality: 
Barracanao (Baracoa), Moa-Baracoa District, Mayarí-Baracoa Belt, Holguín Province, Cuba

Albite

Formula: 
NaAlSi3O8
Strunz: 
9.FA.35
Crystal System: 
Triclinic
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Finnbo (Finbo), Falun, Dalarna, Sweden

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Seller Information

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Seller's terms and conditions

Terms & Conditions

Thank you for your interest in my offers! Payment is possible via Paypal, bank transfer or cash if you pick up the item(s) personally. Bank data will be provided after settling the auction/transaction(s) if needed.

In case you are not happy with a specimen, you may send it back within 4 weeks. After receipt, i will refund the price minus shipping costs. Please inform me before sending an item back. If you have any questions (or maybe complaints) please feel free to contact me.

Best regards Roger