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Babingtonite & Prehnite

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PDM594962

Babingtonite & Prehnite

Description Tabs

Description
Locality: 
Westfield, Hampden County, Massachusetts, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.6 × 3 × 1.9 cm
Description

Classic babingtonite crystals on matrix covered by rounded aggregates of green prehnite.

Ex. Bob Janssens specimen #2167. Acquired in 1987 from Gilbert Gauthier (BE).

Mineral Data
What's on the rock

Babingtonite

Formula: 
Ca2(Fe,Mn)FeSi5O14(OH)
Strunz: 
9.DK.05
Crystal System: 
Triclinic
Hardness: 
5.5 - 6.0
Type Locality: 
Arendal Iron Mines, Arendal, Aust-Agder, Norway

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

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