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Hollandite

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SHS22006

Hollandite

Ex Ydren Collection (California)

Description Tabs

Description
Locality: 
Virgin Valley, Humboldt County, Nevada, United States of America
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 2.2 × 1.3 cm
Description

Bulk of dark hollandite balls

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