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Kidwellite

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CR215671

Kidwellite

Description Tabs

Description
Locality: 
Coon Creek Mine, Shady, Polk County, Arkansas, United States of America
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.2 × 3.5 × 2.6 cm
Description

Kidwellite is a rare phosphate. This is a superb and showy specimen of the species with pastel-green to brown botryoids with curved edges in a gossan matrix.

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