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Berthierine & Aegirine

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SYM1080119

Berthierine & Aegirine

Rare Mineral

Description Tabs

Description
Locality: 
Poudrette Quarry, Mont Saint-Hilaire, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
2 × 1.3 × 12.5 cm
Description

Berthierine crystal on aegirine.

Mineral Data
What's on the rock

Berthierine

Formula: 
(Fe2+,Fe3+,Al)3(Si,Al)2O5(OH)4
Strunz: 
9.ED.15
Crystal System: 
Monoclinic, Hexagonal
Hardness: 
2.5
Type Locality: 
Hayange, Meurthe-et-Moselle, Lorraine, France

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