Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Julgoldite-(Fe2+) Prehnite & Calcite

Views:
Watches:
RHT661788

Julgoldite-(Fe2+) Prehnite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Kreimbach-Kaulbach Quarry, Lauterecken-Wolfstein, Kusel, Rhineland-Palatinate, Germany
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.2 × 2.7 × 1.5 cm
Description

Dark green-black julgoldite-(fe2+) and pale green, botryoidal prehnite with massy calcite (etched).

Mineral Data
What's on the rock

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

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

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White