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Petersenite-(Ce) Psm Synchysite

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SYM772133

Petersenite-(Ce) Psm Synchysite

Rare Mineral

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 1.5 × 0.5 cm
Description

Petersenite pseudomorph after synchysite. 

Mineral Data
What's on the rock

Petersenite-(Ce)

Formula: 
Na4(Ce,La,Nd)2(CO3)5
Strunz: 
5.AD.15
Crystal System: 
Monoclinic
Hardness: 
3.0
Type Locality: 
Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry; Carrière Mont Saint-Hilaire), Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Synchysite

Synonym Of: 

Synchysite-(Ce)

Formula: 
Ca(Ce,La)(CO3)2F
Strunz: 
5.BD.20c
Hardness: 
4.5

Synchysite-(Nd)

Formula: 
Ca(Nd,Y,Gd)(CO3)2F
Strunz: 
5.BD.20c
Hardness: 
4.5

Synchysite-(Y)

Formula: 
Ca(Y,Ce)(CO3)2F
Strunz: 
5.BD.20c
Hardness: 
6.0 - 6.5
Group Parent: 
Synchysite Group