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Britholite-(Ce) & Fluornatropyrochlore

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PAV947919

Britholite-(Ce) & Fluornatropyrochlore

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: 
2.8 × 1.8 × 2.3 cm
Description

Spectacular sample of pinkish britholite-(Ce) crystals associated to reddish fluornatropyrochlore crystals!

Collected: 
2015
Boxed with Label
Mineral Data
What's on the rock

Britholite-(Ce)

Formula: 
Ca2(Ce,Ca)3(SiO4,PO4)3(OH,F)
Strunz: 
9.AH.25
Crystal System: 
Hexagonal
Hardness: 
5.5
Type Locality: 
Naujakasik (Naajakasik), Tunulliarfik Fjord (Tunugdliarfik), Ilímaussaq complex, Narsaq, Kujalleq, Greenland

Fluornatropyrochlore

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