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Hollandite

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SHS784626

Hollandite

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Description
Locality: 
Genna Zinc Smelter, Letmathe, North Rhine - Westphalia, Germany
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.6 × 1.2 × 0.9 cm
Description

Hollandite on matrix

Mineral Data
What's on the rock

Hollandite

Formula: 
Ba(Mn4+6Mn3+2)O16
Strunz: 
4.DK.05a
Hardness: 
4.0 - 6.0
Streak: 
Black
Type Locality: 
Gowari Wadhona Mine, Chhindwara District (Chindawara District; Chindwara District), Jabalpur Division, Madhya Pradesh, India