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Niobophyllite

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WND565674

Niobophyllite

Description Tabs

Description
Locality: 
Mount Malosa, Zomba, Southern Region, Malawi
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 3.9 × 2.7 cm
Largest Crystal: 
2.50cm
Description

A superb specimen with rich, brown, lustrous, fan-like aggregates of the lath-like niobophyllite crystals up to 2.5 cm tall on matrix from Mount Malosa in Malawi. A really top class specimen for this rare mineral.

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

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