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Fluornatropyrochlore & Ferro-katophorite

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SER813198

Fluornatropyrochlore & Ferro-katophorite

Description Tabs

Description
Locality: 
Água de Pau Volcano, São Miguel Island, Azores District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.1 × 0.9 cm
Description

a black crystal of ferrokatophorite hosts some orange well crystallized fluornatropyrochlore crystals ; self collected on 2013

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