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Cavansite With Calcite

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SHW655662

Cavansite With Calcite

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Description
Locality: 
Wagholi Quarry, Pune, Maharashtra, India
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 0.8 × 0.6 cm
Description

Very rare specimen of  bow tie (English 8) like formation of dark blue cavansite with sugar like cubical crystals of calcite on it.

Wagholi, Pune - India is only location in the whole world where best quality Cavansite & Pentagonite is found. However most of the mines in Wagholi are on the verge of closing down due to the expansion of localities around.

Mineral Data
What's on the rock

Cavansite

Formula: 
Ca(VO)Si4O10·4H2O
Strunz: 
9.EA.50
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 4.0
Type Locality: 
Owyhee Dam, Lake Owyhee State Park, Malheur Co., Oregon, USA

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White
Not Sold

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