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Apophyllite On Prehnite

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CAM112335

Apophyllite On Prehnite

Ex Gliddon collection

Description Tabs

Description
Locality: 
Palabora Mine, Loolekop, Phalaborwa, Limpopo Province, South Africa
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.2 × 4.5 × 1.8 cm
Largest Crystal: 
1.20cm
Description

Highly lustrous, colourless, translucent pseudo-cubic apophyllite crystals up to 1.2 cm on a light green prehnite matrix.
A very good locality piece, collected in 1982.

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

Prehnite

Formula: 
Ca2Al2Si3O10(OH)2
Strunz: 
9.DP.20
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Karoo dolerites, Cradock, Chris Hani District, Eastern Cape Province, South Africa
Provenance
Cartils Minerals

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