• Grossular Garnet - Thumbnail •
(Mexico)

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• Grossular Garnet - Thumbnail •
(Mexico)

M168 Grossular Garnet, Thumbnail, Mexico.

The Grossular garnet is a calcium-aluminium silicate.
Grossular is usually green, but it may also be colorless through yellow, red and brown.
The yellow-brown variety, which contains some iron, is known in the trade as essonite, hessonite, cinnamon stone, hyacinth or jacinth.

Grossular (also known as grossularite), like other garnets, forms rounded crystals with 12 rhombic or 24 trapezoidal faces or combinations of these and some other forms.
This crystal habit is classic for the garnet minerals.
Grossular is the calcium aluminum garnet and forms in contact or regional metamorphic enviroments as does andradite the calcium iron garnet.

The Grossular garnet appears in a variety of colors including colorless, white, green, yellow, pink, brown, orange, orange-red.
Some massivespecimens may be multicolored white, light green, and pink. The specimens here are of a green/pink color.

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