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Kidwellite & Strengite

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ESM653156

Kidwellite & Strengite

Description Tabs

Description
Locality: 
Leveäniemi Mine, Svappavaara, Kiruna, Norrbotten County, Sweden
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
3 × 5 × 3.3 cm
Description

Dark green spheres of kidwellite with lavender strengite crystals

Mineral Data
What's on the rock

Kidwellite

Formula: 
NaFe3+9(PO4)6(OH)11·3H2O
Strunz: 
8.DK.20
Hardness: 
3.0
Streak: 
yellow
Type Locality: 
Fodderstack Mountain, Norman, Montgomery Co., Arkansas, USA

Strengite

Formula: 
FePO4·2H2O
Strunz: 
8.CD.10
Hardness: 
3.5 - 4.0
Streak: 
white
Type Locality: 
Eleonore Mine, Rodheim-Bieber, Wetzlar, Hesse, Germany