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Hematite With Cassiterite & Yazganite

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CLB116587

Hematite With Cassiterite & Yazganite

Rare Mineral

Description Tabs

Description
Locality: 
Erciyes Volcanic Area, Kiranardi, Kayseri Province, Turkey
Size Range: 
Thumbnail (1-3cm)
Size: 
1.3 × 1.2 × 1.2 cm
Largest Crystal: 
0.40cm
Description

Haematite crystals up to 0.4 cm, small red cassiterite crystals in the corners and if I'm not wrong, the orange-brown material could be yazganite. But so far I don't have an x-ray confirmation. Could also be simple orpiment or anorpiment.

Mineral Data
What's on the rock

Hematite

Formula: 
Fe2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
5.0 - 6.0

Cassiterite

Formula: 
SnO2
Strunz: 
4.DB.05
Crystal System: 
Tetragonal
Hardness: 
6.0 - 7.0

Yazganite

Formula: 
NaFe3+2(Mg,Mn2+)(AsO4)3·H2O
Strunz: 
8.AC.10
Hardness: 
5.0
Type Locality: 
Erciyes volcanic complex, Kiranardi, Kayseri Province, Central Anatolia Region, Turkey

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