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Kaersutite Sodalite & Biotite

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MEX149272

Kaersutite Sodalite & Biotite

Classic Locality

Description Tabs

Description
Locality: 
Nickenich, Andernach, Mayen-Koblenz, Rhineland-Palatinate, Germany
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 4.9 × 5 cm
Description

Kaersutite built black, prismatic crystals. They look like pseudobrookite. Analyses show that it is a member of amphibole group. This specimen is optical identity with analysed material. Sodalite shows here typical white crystals. The biotite isn't confirm with IMA. Please look on mindat, too.

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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