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Manganoan Calcite Quartz & Pyrite

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SCH77211

Manganoan Calcite Quartz & Pyrite

Description Tabs

Description
Locality: 
Pachapaqui District, Bolognesi Province, Ancash Department, Peru
Size Range: 
Cabinet (10-18 cm)
Size: 
12.8 × 10.2 × 4.7 cm
Description

Pale-pink manganese-rich scalenohedral calcite crystals completely covering a plate of colorless quartz crystals. This variety is frequently sold by the misnomer manganocalcite. The calcite crystals have a matte luster and fluoresce orange under UV. Quartz flowers add contrast to this beautiful large specimen.

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

Pyrite

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

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