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Steenstrupine-(Ce) Sodalite & Aegirine

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MNR750514

Steenstrupine-(Ce) Sodalite & Aegirine

ex. Rudolf Ďuďa collection

Description Tabs

Description
Locality: 
Kvanefjeld Uranium Deposit, Kvanefjeld, Ilímaussaq, Narsaq, Kujalleq, Kujalleq, Greenland
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 5 × 3.2 cm
Largest Crystal: 
3.50cm
Description

Dark brown to black crystals of Steenstrupine-Ce in association with Sodalite and dark green Aegirine. Largest Steenstrupine-Ce crystal reach 3.5 cm. Collected in 1988.

 

Mineral Data
What's on the rock

Steenstrupine-(Ce)

Formula: 
Na14Mn2+2(Fe3+,Mn3+)2Ce6(Zr,Th)(Si6O18)2(PO4)6(HPO4)(OH)2·2H2O
Strunz: 
9.CK.20
Hardness: 
4.0
Type Locality: 
Kangerluarsuk Fjord (Kangerdluarssuq Fjord), Ilímaussaq complex, Narsaq, Kujalleq, 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

Aegirine

Formula: 
NaFe3+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.25
Crystal System: 
Monoclinic
Hardness: 
6.0
Type Locality: 
Rundemyr, Øvre Eiker, Buskerud, Norway