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Chrome-Bearing Grossular On Diopside

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PDM829195

Chrome-Bearing Grossular On Diopside

Description Tabs

Description
Locality: 
Orford Nickel Mine, St-Denis-de-Brompton, Estrie, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 2 × 1.9 cm
Description

Gemmy well-formed complex trapezohedral crystals of chrome-bearing grossular of strong emerald green colour and superb vitreous lustre.

Acquired in 1991. Ex Jan Sibtsen #1454.

Mineral Data
What's on the rock

Chrome-Bearing Grossular

Variety Of: 

Grossular

Formula: 
Ca3Al2(SiO4)3
Strunz: 
9.AD.25
Hardness: 
6.5 - 7.0
Formula: 
Ca3(Al,Cr3+)2(SiO4)3
Group Parent: 
Grossular
Colour: 
Green

Diopside

Formula: 
CaMgSi2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.15
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.5
Streak: 
white

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