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Molinelloite Duttonite Cortesognoite Volborthite

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SMM926810

Molinelloite Duttonite Cortesognoite Volborthite

Type Locality for molinelloite
Rare Mineral

Description Tabs

Description
Locality: 
Molinello Mine, Ne, Graveglia Valley, Genova Province, Liguria, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 2 × 0.8 cm
Description

A multitude of prismatic, black, lustrous molinelloite crystals together with beautiful rosettes of radial golden duttonite crystals scattered on the rich sample that comes from the type locality for molinelloite. The sample host also very pale yellowish / whitish cortesognoite (type locality) and greenish volborthite. Excellent specimen.

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Mineral Data
What's on the rock

Molinelloite

Formula: 
Cu(H2O)(OH)V4+O(V5+O4)
Crystal System: 
Triclinic
Type Locality: 
Molinello Mine, Graveglia Valley, Ne, Genova Province, Liguria, Italy

Duttonite

Formula: 
V4+O(OH)2
Strunz: 
4.HE.35
Hardness: 
2.5 - 0.0
Type Locality: 
Peanut Mine, Bull Canyon, Uravan District, Montrose Co., Colorado, USA

Cortesognoite

Formula: 
CaV2Si2O7(OH)2·H2O
Hardness: 
0.0
Type Locality: 
Molinello Mine, Graveglia Valley, Ne, Genova Province, Liguria, Italy

Volborthite

Formula: 
Cu3(V2O7)(OH)2·2H2O
Strunz: 
8.FD.05
Hardness: 
3.5
Type Locality: 
Sofronovskii Cu Mine, Yugovskii Zavod, Perm', Permskaya Oblast', Middle Urals, Urals Region, Russia...

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