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Prehnite Pectolite & Julgoldite-(Fe2+)

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MEX799889

Prehnite Pectolite & Julgoldite-(Fe2+)

Classic Locality

Description Tabs

Description
Locality: 
Kreimbach-Kaulbach Quarry, Lauterecken-Wolfstein, Kusel, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.9 × 5.7 × 4.5 cm
Weight: 
323.00gr
Description

Rich specimen with a lot of prehnite balls. About half of them show crystals. Additional are here pectolite groups and dark green crust of julgoldite-fe2+. Everything sits on calcite.

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

Pectolite

Formula: 
NaCa2(HSi3O9)
Strunz: 
9.DG.05
Hardness: 
4.5 - 5.0
Streak: 
White
Type Locality: 
Sano, Mori, Mt. Baldo, Lagarina Valley, Trento Province, Trentino-Alto Adige (Trentino-Südtirol), Italy

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

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Start 11 Feb 13:00
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Shipping Information

Postage Area Price
Germany
6
Europe
10
worldwide
$12

Bid History

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