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Synchysite-(Ce)

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GFM617078

Synchysite-(Ce)

Rare Mineral

Description Tabs

Description
Locality: 
Nâm Nâm Xe, Mount Fansipan, Phong Tho District, Lai Chau Province, Vietnam
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.4 × 5 × 2.3 cm
Description

brown massive 3 cm aggregates of pure lanthanum-rich synchysite-(Ce), intergrown with parisite-(Ce), violet fluorite and ankerite. Unique specimens from a remote location in northern Vietnam

Mineral Data
What's on the rock

Synchysite-(Ce)

Formula: 
Ca(Ce,La)(CO3)2F
Strunz: 
5.BD.20c
Hardness: 
4.5
Type Locality: 
Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland