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Sursassite & Tinzenite

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CHA776513

Sursassite & Tinzenite

Classic Locality

Description Tabs

Description
Locality: 
Molinello Mine, Ne, Graveglia Valley, Genova Province, Liguria, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1.2 × 1 × 0.9 cm
Description

specimen con some very nice orange needles of sursassite with associate yellow crystals of tinzenite.

For value the dimension of the crystals I remenber you that the photos of my specimens are taken at only 20/40 enlargement! 

Mineral Data
What's on the rock

Sursassite

Formula: 
Mn2+2Al3(Si2O7)(SiO4)(OH)3
Strunz: 
9.BG.15
Hardness: 
0.0
Type Locality: 
Parsettens Alp, Tinizong (Tinzen), Oberhalbstein (Surses; Sursass), Albula Valley, Grischun (Grisons; Graubünden), Switzerland

Tinzenite

Formula: 
(Ca,Mn2+)2Mn2+Al2BSi4O15(OH)
Strunz: 
9.BD.20
Crystal System: 
Triclinic - Pinacoidal
Hardness: 
6.5 - 7.0
Type Locality: 
Parsettens Alp, Tinizong (Tinzen), Oberhalbstein (Surses; Sursass), Albula Valley, Grischun (Grisons; Graubünden), Switzerland

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