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Kentbrooksite

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NSS221536

Kentbrooksite

Description Tabs

Description
Locality: 
Lepkhe-Nel'm Mountain, Seidozero Lake, Lovozero Massif, Murmansk Oblast, Russian Federation
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5 × 4 cm
Largest Crystal: 
1.40cm
Description

tabular hexsagonal cristal of kentbrooksite,well formed with only one microchipping,very good for the specie,matrix is natrolite

Mineral Data
What's on the rock

Kentbrooksite

Formula: 
(Na,REE)15(Ca,REE)6(Mn2+,Fe2+)3Zr3Nb[Si25O74]F2·2H2O
Strunz: 
9.CO.10
Crystal System: 
Trigonal
Hardness: 
5.0 - 6.0
Streak: 
White.
Type Locality: 
Kentbrooksite occurrence, Amdrup Firth, Kangerlussuaq Firth, Tunu Province (East Greenland), Greenland

Seller Information

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