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Coronadite Hollandite & Vanadinite

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POL941547

Coronadite Hollandite & Vanadinite

Classic Locality

Description Tabs

Description
Locality: 
Taouz, Errachidia Province, Drâa-Tafilalet Region, Morocco
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5.7 × 4.8 cm
Description

Very nice specimen of small, lustrous Coronadite crystals with dull, botryoidal Hollandite and few prismatic Vanadinite crystals from classic locality. From my personal collection.

Mineral Data
What's on the rock

Coronadite

Formula: 
Pb(Mn64+Mn23+)O16
Strunz: 
4/D.08-70
Crystal System: 
Monoclinic
Hardness: 
4½ - 5
Colour: 
Dark gray, black
Type Locality: 
Horseshoe Mine, Coronado Mine, Coronado vein, Copper Plate Gulch, Copper Mountain District, Greenlee County, Arizona, USA
Isostructural with: 
Cryptomelane
Ferrihollandite
Hollandite
Manjiroite
Strontiomelane

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

Vanadinite

Formula: 
Pb5(VO4)3Cl
Strunz: 
8.BN.05
Crystal System: 
Hexagonal
Hardness: 
2.5 - 3.0
Type Locality: 
Zimapán, Mun. de Zimapán, Hidalgo, Mexico

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