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Whewellite & Smythite

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CLB165106

Whewellite & Smythite

Rare Mineral

Description Tabs

Description
Locality: 
Paitzdorf, Ronneburg Uranium Deposit, Gera, Thuringia, Germany
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.7 × 3.7 cm
Largest Crystal: 
2.60cm
Description

A large, gray whewellite crystal, colored by inclusions of the rare nickel iron sulfide, smythite. With chalcopyrite and dolomite crystals. The whewellite crystal is a little damaged. Still a very rare and collectable specimen.

Mineral Data
What's on the rock

Whewellite

Formula: 
Ca(C2O4)·H2O
Strunz: 
10.AB.45
Crystal System: 
Orthorhombic
Hardness: 
2.5 - 3.0

Smythite

Formula: 
(Fe,Ni)3+xS4 (x=0-0.3)
Strunz: 
2.CC.10
Hardness: 
4.5
Streak: 
dark gray
Type Locality: 
State Route 37 road cut (6), Bloomington, Monroe Co., Indiana, USA

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