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Calcite & Gyrolite With Quartz

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SHW59625

Description Tabs

Description
Locality: 
Malad Quarry, Mumbai, Maharashtra, India
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.3 × 6.4 × 5.2 cm
Description

Calcite with gyrolite on quartz matrix from Malad, Mumbai is now rare item as mines in this area are closed.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Gyrolite

Formula: 
NaCa16Si23AlO60(OH)8·14H2O
Strunz: 
9.EE.30
Hardness: 
2.5
Streak: 
White
Type Locality: 
The Storr, Portree, Trotternish, Isle of Skye, North West Highlands (Inverness-shire), Scotland, UK

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

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