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Fluornatromicrolite

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SER581352

Fluornatromicrolite

Type Locality

Description Tabs

Description
Locality: 
Quixaba Pegmatite, Frei Martinho, Borborema Province, Paraiba, Brazil
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.5 × 0.1 cm
Description

My last two specimen featuring green crystals on pegmatite from the type locality

Mineral Data
What's on the rock

Fluornatromicrolite

Formula: 
(Na,Ca,Bi)2Ta2O6F
Strunz: 
4.DH.15
Crystal System: 
Isometric
Hardness: 
5.0 - 0.0
Colour: 
Green
Streak: 
White
Type Locality: 
Quixaba pegmatite, Quixaba, Frei Martinho, Borborema mineral province, Paraíba, Brazil