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Manganoan Calcite Quartz & Chalcopyrite

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PCZ727673

Manganoan Calcite Quartz & Chalcopyrite

Fluorescent

Description Tabs

Description
Locality: 
Boldut Mine, Cavnic, Maramureș County, Romania
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.3 × 6.8 × 3.2 cm
Description

A sphalerite matrix covered with sharp quartz crystals between which are  masses of white manganocalcite and a few rhombs. Bright chalcopyrite crystals add attractive highlights. a lovely display specimen with the added attraction of the manganocalcite having an orange fluorescence.

Matrix: 
Sphalerite
Condition
Main Display: 
Excellent
General: 
Very good - some peripheral damage
Mineral Data
What's on the rock

Manganoan Calcite

Variety Of: 

Calcite

Formula: 
CaCO3
Strunz: 
5.AB.05
Hardness: 
3.0
Formula: 
(Ca,Mn)CO3
Hardness: 
0.0

Quartz

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

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0
Peter Crozier Minerals