Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Cordylite & Sérandite

Views:
Watches:
SYM142843

Cordylite & Sérandite

Rare Mineral

Description Tabs

Description
Locality: 
Demix-Varennes Quarry, Varennes & St-Amable, Montérégie, Québec, Canada
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 2 × 2 cm
Description

Cluster of cordyite crystals on aegirine with white clusters of serandite.

Mineral Data
What's on the rock

Cordylite

Synonym Of: 

Cordylite-(Ce)

Formula: 
NaBaCe2(CO3)4F
Strunz: 
5.BD.05
Hardness: 
4.5

Cordylite-(La)

Formula: 
(Na,Ca)Ba(La,Ce,Sr)2(CO3)4F
Hardness: 
4.0 - 0.0

Sérandite

Formula: 
Na(Mn2+,Ca)2(HSi3O9)
Strunz: 
9.DG.05
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Rouma Island (Roume Island; Roma Island; Ruma Island), Los Archipelago (Los Islands), Guinea