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Kidwellite

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MSD1039885

Kidwellite

Description Tabs

Description
Locality: 
Clara Mine, Oberwolfach, Freiburg Region, Baden-Württemberg, Germany
Class: 
Crystal Group/Cluster
Size Range: 
Micromount (under 1cm)
Size: 
0.9 × 0.6 × 0.5 cm
Description

Light beige, spherulitically grown Kidwellite set very rich in contrast on spherical, black goethite.

 

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