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Ilvaite Hedenbergite & Quartz

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CLB164126

Ilvaite Hedenbergite & Quartz

ex collection Bringe, Vetulonia
Classic Locality

Description Tabs

Description
Locality: 
Campiglia Marittima, Livorno Province, Tuscany, Italy
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 4.7 × 3.5 cm
Description

Black ilvaite between colorless quartz crystals on a base of greenish hedenbergite. Very rare Italian specimen.

Mineral Data
What's on the rock

Ilvaite

Formula: 
CaFe2+2Fe3+(Si2O7)O(OH)
Strunz: 
9.BE.07
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0
Type Locality: 
Torre di Rio - Santa Filomena area (Monte della Torre), Rio Marina, Elba Island, Livorno Province, Tuscany, Italy

Hedenbergite

Formula: 
CaFe2+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.15
Hardness: 
5.5 - 6.5
Type Locality: 
Mormorsgruvan, Tunaberg Cu-Co Ore Field, Tunaberg, Nyköping, Södermanland, Sweden

Quartz

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

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