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Julgoldite-(Fe2+) & Inesite

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UVM778090

Julgoldite-(Fe2+) & Inesite

Rare Mineral

Description Tabs

Description
Locality: 
Hale Creek Mine, Trinity County, California, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 2.4 × 1.6 cm
Description

Black julgoldite-(Fe2+) in matrix with pink inesite.   Very rare locality specimen.

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

Inesite

Formula: 
Ca2(Mn,Fe)7Si10O28(OH)2·5H2O
Strunz: 
9.DL.05
Hardness: 
5.5 - 6.0
Streak: 
White
Type Locality: 
Hilfe Gottes Mine, Oberscheld, Dillenburg, Dillenburg District, Hesse, Germany

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