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Kaersutite Sodalite & Biotite

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MEX524434

Kaersutite Sodalite & Biotite

Classic Locality

Description Tabs

Description
Locality: 
Nickenicher Sattel, Nickenich, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 3.6 × 1.9 cm
Description

Well terminated, dark black kaersutite crystals, together with white sodalite crystals and free crystallized biotite groups.

Mineral Data
What's on the rock

Kaersutite

Formula: 
{Na}{Ca2}{Mg3AlTi}(Al2Si6O22)O2
Strunz: 
9.DE.15
Crystal System: 
Monoclinic
Hardness: 
5.0 - 6.0
Type Locality: 
Qaarsut (Kaersut), Uummannaq (Umanak), Qaasuitsup, Greenland

Sodalite

Formula: 
Na8(Al6Si6O24)Cl2
Strunz: 
9.FB.10
Crystal System: 
Isometric
Hardness: 
5.5 - 6.0
Streak: 
White
Type Locality: 
Ilímaussaq complex, Narsaq, Kujalleq, Greenland

Biotite

Group Parent: 
Mica Group
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