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Orlymanite

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FRE134691

Orlymanite

Description Tabs

Description
Locality: 
Wessels Mine, Hotazel, Kalahari, Northern Cape Province, South Africa
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 2.5 × 1 cm
Description

Brown incrustation formed by globules (up to about 1.5 mm in diam.) and radiating crystals of orlymanite on crystalline inesite. Very rich specimen. Rare.

Mineral Data
What's on the rock

Orlymanite

Formula: 
Ca4Mn3Si8O20(OH)6·2H2O
Strunz: 
9.EE.30
Crystal System: 
Trigonal
Hardness: 
4.0 - 5.0
Type Locality: 
Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese field, Northern Cape Province, South Africa...

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