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Apophyllite

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MGR931375

Apophyllite

Classic Locality

Description Tabs

Description
Locality: 
Vikarnes, Haldarsvik, Streymoy Island, Faroe Islands, Denmark
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 2.3 × 2.5 cm
Description

The matrix is a thin, dark plate which is covered with countless, tiny and sparkling snowy white Apophyllite crystals. Set in the center you can see a free-standing main crystal - it is about 20mm tall. It is sharp terminated and highly lustrous and on same high quality all around. It shows numerous razor sharp stepped faces and luster is really perfect. No damage at all! The crystal is not completely white, it shows a minor touch of apple-green. Really very rare material and it is very eye-catching and aesthetic

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