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Chrome-Bearing Grossular With Diopside

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QBM1038650

Chrome-Bearing Grossular With Diopside

Classic Locality

Description Tabs

Description
Locality: 
Jeffrey Mine, Val-des-Sources, Estrie, Québec, Canada
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.2 × 3.4 × 2.1 cm
Description

A marvelous and rare garnet var. grossular with grass green phantoms from the famous Jeffrey mine, Quebec, Canada. The grossular crystals to 1mm are gem with grass green cores which are result of chromium and surrounded by transparent colorless areas. The crystals have a sharp rhombic dodecahedral crystallization, glassy luster and irresistible contrast. Diopside needles are seen too. The green cored garnets are among the most unusual and rare Jeffrey mine garnets. This was mined long time ago - the mine is closed now. For references see the 2013 issue of The Mineralogical Record vol. 44, # 4. Some contacts. On acrylic base.

Cool phantom garnets!

Shipping weight up to 0.500 kg

#21210

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