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Niobophyllite

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CR44533

Niobophyllite

Rare Mineral

Description Tabs

Description
Locality: 
Mount Malosa, Zomba, Southern Region, Malawi
Size Range: 
Thumbnail (1-3cm)
Size: 
2.4 × 2.7 × 2.5 cm
Description

Goldenbrown niobophyllite crystals in  gemmy quartz crystals sitting on a sharp feldspar crystal.

With lustrous black aegirine and some xenotime-Y microcrystals.

Mineral Data
What's on the rock

Niobophyllite

Formula: 
(K,Na)3(Fe,Mn)6(Nb,Ti)2Si8(O,OH,F)31
Strunz: 
9.DC.05
Hardness: 
3.0 - 4.0
Type Locality: 
Mann 2 (Ten Mile Lake), Seal Lake alkaline complex (Letitia Lake), Labrador, Newfoundland and Labrador, Canada