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Pentagonite In Calcite

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SHW565152

Pentagonite In Calcite

Description Tabs

Description
Locality: 
Wagholi Quarry, Pune, Maharashtra, India
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.5 × 6.5 × 5 cm
Weight: 
260.00gr
Description

Very unusual specimen of inclusion of Pentagonite in yellow Calcite on matrix of fine Heulandite.

Crystals of Heulandite are clearly visible through Calcite.

Mineral Data
What's on the rock

Pentagonite

Formula: 
Ca(VO)Si4O10·4H2O
Strunz: 
9.EA.55
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

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