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Cordylite-(Ce) Elpidite & Aegirine

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SYM606875

Cordylite-(Ce) Elpidite & Aegirine

Rare Mineral

Description Tabs

Description
Locality: 
Demix-Varennes Quarry, Varennes & St-Amable, Montérégie, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 4 × 2.5 cm
Description

Very fine specimen of stacked green corylite-ce crystals with many clustered light yellow crystals of terminated elpidite crystals. 

Mineral Data
What's on the rock

Cordylite-(Ce)

Formula: 
NaBaCe2(CO3)4F
Strunz: 
5.BD.05
Hardness: 
4.5
Type Locality: 
Narsaarsuk pegmatite (Narssârssuk pegmatite), Narsaarsuk Plateau, Igaliku (Igaliko), Narsaq, Kujalleq, Greenland

Elpidite

Formula: 
Na2ZrSi6O15·3H2O
Strunz: 
9.DG.65
Crystal System: 
Orthorhombic
Hardness: 
5.0

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