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Fluornatropyrochlore Zircon & Katophorite

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SER918131

Fluornatropyrochlore Zircon & Katophorite

Description Tabs

Description
Locality: 
Água de Pau Volcano, São Miguel Island, Azores District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.1 × 2.6 × 1.6 cm
Description

some wonderful fluornatropyrochlore crystals on microcline with yellow zircon and black katophorite ; self collected on 2013, August

Mineral Data
What's on the rock

Fluornatropyrochlore

Formula: 
(Na,REE,Ca)2Nb2(O,OH)6F
Hardness: 
0.0
Type Locality: 
Maoniuping Mine, Mianning Co., Liangshan Autonomous Prefecture, Sichuan Province, China

Zircon

Formula: 
ZrSiO4
Strunz: 
9.AD.30
Crystal System: 
Tetragonal
Hardness: 
7.5
Streak: 
White

Katophorite

Variety Of: 

Katophorite Root Name

Formula: 
A(CaNa)(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2
Hardness: 
0.0