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Apophyllite

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RPL770696

Apophyllite

Classic Locality

Description Tabs

Description
Locality: 
Hvítusteinar Quarry, Skálabøtnur, Skálafjørđur, Eysturoy Island, Faroe Islands, Denmark
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 6 × 3.5 cm
Largest Crystal: 
0.20cm
Weight: 
171.00gr
Description

Hundreds of bright colourless apophyllite crystals cover one side of a brown basalt matrix.  A clean and sparkling example, no damage to the main display area.

Previous labels supplied (not photographed)
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

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