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Illite & Siderite & Bournonite & Pyrite & Quartz

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SHS1164230

Description Tabs

Description
Locality: 
Apollo Mine, Raubach, Neuwied, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2.5 × 1.6 cm
Description

Illite with siderite and bournonite, pyrite and quartz

Mineral Data
What's on the rock

Illite

Variety Of: 

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Formula: 
K0.65Al2.0[Al0.65Si3.35O10](OH)2
Hardness: 
1.0 - 2.0
Streak: 
White
Type Locality: 
Maquoketa Shale, Gilead, Calhoun Co., Illinois, USA

Siderite

Formula: 
FeCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White

Bournonite

Formula: 
PbCuSbS3
Strunz: 
2.GA.50
Hardness: 
2.5 - 3.0
Type Locality: 
Wheal Boys (Trewetha Mine; Old Trewetha Mine), Port Isaac, St Endellion, Wadebridge District, Cornwall, England, UK

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

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$4
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Start 02 Feb 18:00
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