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Sérandite & Leucophanite

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SYM194426

Sérandite & Leucophanite

Rare Mineral

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 1.8 × 1.2 cm
Description

Pink spray of serandite with two crystals of greenish leucophanite.

Mineral Data
What's on the rock

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

Leucophanite

Formula: 
NaCaBeSi2O6F
Strunz: 
9.DH.05
Hardness: 
4.0
Streak: 
white
Type Locality: 
Låven (Skådön; Lamö; Lamanskjaer), Langesundsfjorden, Larvik, Vestfold, Norway