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Prehnite & Julgoldite-(Fe2+)

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CLB609650

Prehnite & Julgoldite-(Fe2+)

Classic Locality

Description Tabs

Description
Locality: 
Rauschermühle Quarry, Niederkirchen, Kaiserslautern, Rhineland-Palatinate, Germany
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
1.9 × 1.6 × 0.5 cm
Description

Nice thumbnail of dark green julgoldite-(fe2+) on pale green, botryoidal prehnite.

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

Julgoldite-(Fe2+)

Formula: 
Ca2(Fe2+,Mg)(Fe3+,Al)2(Si2O7)(SiO4)(OH)2·H2O
Strunz: 
9.BG.20
Crystal System: 
Monoclinic
Hardness: 
0.0
Type Locality: 
Långban, Filipstad, Värmland, Sweden

Seller Information

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