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Magnesite Var Pinolite Graphite & Dolomite

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CLB206103

Magnesite Var Pinolite Graphite & Dolomite

Description Tabs

Description
Locality: 
Sunk, Hohentauern, Niedere Tauern, Styria, Austria
Size Range: 
Cabinet (10-18 cm)
Size: 
16.5 × 14.3 × 1.3 cm
Description

A very interesting 'graphic' secimen - very curious and decorative. Pieces of magnesite naturally 'glued' together by graphite-pigmented dolomite (gray lines). This so-called 'pinolite' (due to the resemblance of pine seeds) is only found at this locality. A very fine, cut and polished slice.

Mineral Data
What's on the rock

Magnesite

Formula: 
MgCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White
Type Locality: 
Magnisía Prefecture (Magnesia), Thessalia Department (Thessaly), Greece

Pinolite

Mixture Of: 

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Hardness: 
3.5 - 4.0

Graphite

Formula: 
C
Strunz: 
1.CB.05a
Hardness: 
1.0 - 2.0

Magnesite

Formula: 
MgCO3
Strunz: 
5.AB.05
Hardness: 
3.5 - 4.5

Graphite

Formula: 
C
Strunz: 
1.CB.05a
Crystal System: 
Hexagonal
Hardness: 
1.0 - 2.0

Dolomite

Formula: 
CaMg(CO3)2
Strunz: 
5.AB.10
Crystal System: 
Trigonal - Rhombohedral
Hardness: 
3.5 - 4.0
Streak: 
White

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