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Hedenbergite & Annite

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SHS56854

Hedenbergite & Annite

Description Tabs

Description
Locality: 
Mont Saint-Hilaire, Montérégie, Québec, Canada
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.3 × 6.2 × 5.2 cm
Description

Blocky hedenbergite and annite in matrix

Mineral Data
What's on the rock

Hedenbergite

Formula: 
CaFe2+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.15
Hardness: 
5.5 - 6.5
Type Locality: 
Mormorsgruvan, Tunaberg Cu-Co Ore Field, Tunaberg, Nyköping, Södermanland, Sweden

Annite

Formula: 
KFe2+3(AlSi3O10)(OH)2
Strunz: 
9.EC.20
Crystal System: 
Monoclinic
Hardness: 
3.0
Colour: 
Black
Type Locality: 
Rockport, Essex Co., Massachusetts, USA
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