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Apophyllite

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RBR174091

Apophyllite

Description Tabs

Description
Locality: 
Pune (Poonah), Maharashtra, India
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 6.5 × 3 cm
Description

I purchased this specimen 3 years ago. The guy from India told me that this kind of apophyllite was rarely found in Poona. Until now I haven't seen a similar specimen again. The apophyllite is developed as tabular crystals with a great luster and a light green color. The crystals are up to 2 cm long with a good clearity. Only one crystal at the side is not perfect.

Mineral Data
What's on the rock

Apophyllite

Synonym Of: 

Fluorapophyllite-(K)

Formula: 
KCa4(Si8O20)(F,OH)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.5 - 5.0

Fluorapophyllite-(Na)

Formula: 
NaCa4(Si8O20)F·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

Hydroxyapophyllite-(K)

Formula: 
KCa4(Si8O20)(OH,F)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0