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Manganoan Calcite & Quartz & Pyrite

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MGR550424

Manganoan Calcite & Quartz & Pyrite

Description Tabs

Description
Locality: 
Casapalca Mine, Huarochiri Province, Lima Department, Peru
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.9 × 7.6 × 4.8 cm
Description

This fragile specimen consists of intergrown freestanding thin plates of manganoan calcite crystals. Between these crystals you can see tiny elongated quartz crystals and some small lustrous pyrite crystals. With backlight the light pink color will become much more intense. The tridimensional assemble is much better in person.

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