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Apophyllite

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PCZ179179

Apophyllite

Description Tabs

Description
Locality: 
Maxwell Quarries, Ballymena, County Antrim, Northern Ireland, United Kingdom
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 2.5 × 1 cm
Description

Sharp, translucent apophyllite crystals. A good example from a quarry that probably provided the best of the Co. Antrim apophyllite specimens. Unfortunately it is now closed to collecting. One of my last few specimens.

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
Peter Crozier Minerals