Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Prehnite Psm Laumonite & Apophyllite

Views:
Watches:
ESM800403

Prehnite Psm Laumonite & Apophyllite

Description Tabs

Description
Locality: 
Malad Quarry, Mumbai, Maharashtra, India
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
12 × 7 × 9 cm
Description

A cluster of hollow prehnite casts after laumontite with perfect terminations with colorless apophyllite crystals attached

Mineral Data
What's on the rock

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

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