Green Grossular

Calcium Aluminum Silicate, Ca3Al2(SiO4)3

Grossular is a member of the garnet group. It is typically a product of thermal and contact metamorphism of calcareous and aluminous rocks.

David Michaels provided the following on this specimen:
"The Green Grossular is from the Thetford Mines in Quebec. This piece was in a box buried in a closet of a friend."

If you like big pictures, here's a 632x712 JPEG image (56 KB) of the Grossular.

Rocks from David Michaels' Collection

Index of Specimen Images

Table of Contents 8/15/95