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Apophyllite

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CAM500313

Apophyllite

Description Tabs

Description
Locality: 
Streymoy Island, Faroe Islands, Denmark
Class: 
Single Crystal
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 7 × 3 cm
Largest Crystal: 
1.40cm
Description

A really very good specimen from the Faroe Islands with a good coverage of blocky colourless to white apophyllite crystals up to 1.4 cm associated with white balls of probably gyrolite on matrix.

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
Cartils Minerals

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