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Titanite Haüyne Augite & Magnesite

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CLB544570

Titanite Haüyne Augite & Magnesite

Classic Locality

Description Tabs

Description
Locality: 
Mendig, Mendig, Mayen-Koblenz, Rhineland-Palatinate, Germany
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 2.8 × 2.4 cm
Description

One of those incredible Eifel specimen with almost a dozen (if not more) different species. The main focus is the big (for the locality), honey-brown titanite crystal. More titanite and several, very good haüyne crystals (very good surfaces, visible under microscope), black augite and green globular magnesite balls (hard to see on pictures - spots on the augite crystals). Some elongated, lath-shaped crystals are probably pseudobrookite, magnetite stands on the original label, but I can't detect any magnetism. White, acuícular crystals could be everything, not to mention some microscopic material. See for yourself.

Mineral Data
What's on the rock

Titanite

Formula: 
CaTi(SiO4)O
Strunz: 
9.AG.15
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Titanite occurrence, Hauzenberg, Lower Bavaria, Bavaria, Germany

Haüyne

Formula: 
(Na,Ca)4-8(Al6Si6O24)(SO4,S,Cl)1-2
Strunz: 
9.FB.10
Hardness: 
5.5 - 6.0
Type Locality: 
Lake Nemi, Alban Hills, Rome Province, Latium, Italy

Augite

Formula: 
(Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6]
Strunz: 
9.DA.15
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

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

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