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Fluornatropyrochlore Zircon & Aegirine

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PAV932672

Fluornatropyrochlore Zircon & Aegirine

Classic Locality

Description Tabs

Description
Locality: 
Lombadas, Ribeira Grande, São Miguel Island, Azores District, Portugal
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.4 × 1.2 × 1.1 cm
Description

Group of very nice fluornatropyrochlore crystals associated to white zircon and dark green aegirine.

Collected: 
2014
Boxed with Label
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

Aegirine

Formula: 
NaFe3+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.25
Crystal System: 
Monoclinic
Hardness: 
6.0
Type Locality: 
Rundemyr, Øvre Eiker, Buskerud, Norway