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Taramellite & Celsian & Diopside

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SKY735837

Taramellite & Celsian & Diopside

Type Locality

Description Tabs

Description
Locality: 
Candoglia Quarries, Mergozzo, Piedmont, Italy
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3 × 1.7 cm
Description

Brown taramellite crystals associated to celsian crystals and diopsid from the type locality for taramellite.

Mineral Data
What's on the rock

Taramellite

Formula: 
Ba4(Fe3+,Ti,Fe2+,Mg)4(B2Si8O27)O2Clx
Strunz: 
9.CE.20
Hardness: 
5.5
Colour: 
Red-brown
Type Locality: 
Candoglia quarries, Candoglia, Mergozzo, Verbano-Cusio-Ossola Province, Piedmont, Italy

Celsian

Formula: 
BaAl2Si2O8
Strunz: 
9.FA.30
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Jakobsberg Mine, Nordmark (Nordmarksberg), Filipstad, Värmland, Sweden

Diopside

Formula: 
CaMgSi2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.15
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.5
Streak: 
white

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