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Nacareniobsite-(Ce) & Steenstrupine-(Ce)

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CSL612329

Nacareniobsite-(Ce) & Steenstrupine-(Ce)

Rare Mineral

Description Tabs

Description
Locality: 
Kvanefjeld Uranium Deposit, Kvanefjeld, Ilímaussaq, Narsaq, Kujalleq, Kujalleq, Greenland
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.5 × 1 × 1 cm
Description

Nacareniobsite-(Ce) is a very rare Na-Ca-REE-Nb silicate species, forms cream coloured platy crystals in matrix. Associating mineral are brown steenstrupine-(Ce), ussingite and black aegirine.;

Mineral Data
What's on the rock

Nacareniobsite-(Ce)

Formula: 
Na3Ca3(Ce,La,Nd)Nb(Si2O7)2OF3
Strunz: 
9.BE.20
Crystal System: 
Monoclinic
Hardness: 
5.0
Type Locality: 
Kvanefjeld adit, Kvanefjeld Uranium deposit, Kuannersuit Plateau (Kvanefjeld), Ilímaussaq complex, Narsaq, Kujalleq, Greenland

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
Loranth Minerals

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