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Vivianite On Pyrite

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QRI812521

Vivianite On Pyrite

Former collection Lehmann (CH)
Classic Locality

Description Tabs

Description
Locality: 
Huanuni Mine, Huanuni, Dalence Province, Oruro Department, Bolivia
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 2.2 × 2.2 cm
Largest Crystal: 
1.10cm
Weight: 
19.00gr
Description

Deep blue fan of vivianite crystals from this classic Bolivian locality. Grown on the pyrite matrix, a classic for the locality.
The specimen appears to be very stable and not undergoing alteration. The previous collector has kept it always in the dark and controlled environment, something confirmed by the vivid blue color of vivianite. 

In great conditions, it comes from the Lehmann collection (CH) and it dates back to the late 80s.

Mineral Data
What's on the rock

Vivianite

Formula: 
Fe2+3(PO4)2·8H2O
Strunz: 
8.CE.40
Crystal System: 
Monoclinic
Hardness: 
1.5 - 2.0
Type Locality: 
Wheal Kind (Wheal Kine), West Wheal Kitty group, St Agnes, St Agnes District, Cornwall, England, UK

Pyrite

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

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