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Calcite & Hedenbergite

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PFK513246

Calcite & Hedenbergite

Classic Locality

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Description
Locality: 
Megalo Livadi, Serifos Island, Milos, South Aegean, Greece
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4 × 2.5 cm
Description

Sharp, lustrous, scalenohedral crystals of calcite, with a whitish fibrous mineral on them, which I guess is hedenbergite. Although calcite is a common mineral, you don't get a decent Seriphos calcite because most of the collectors look for prasem quartz there. So these are rare and impossible to find nowadays because collecting is strictly forbidden in Seriphos.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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

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