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Quartz With Hollandite

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KFT53214

Quartz With Hollandite

Description Tabs

Description
Locality: 
Ambatofinandrahana, Amoron'i Mania, Madagascar
Size Range: 
Cabinet (10-18 cm)
Size: 
10.1 × 7 × 3 cm
Description

Fine hollandite looking like stars includite in quartz - looks very good!

Mineral Data
What's on the rock

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

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