Name:

grossular Garnet (var Hessonite)

A photo of the mineral grossular

Class:

Silicates

Chemistry:

Ca3Al2(SiO4)3 Calcium aluminum silicate (Hessonite contains some iron)

Color(s):

honey, brown, brown-orange Streak: white

Hardness:

6.5 - 7.5

SpecGrav:

3.59 - 3.68

Fracture:

conchoidal

Cleavage:

none

Crystal:

isometric (icositetrahedron, dodecahedral etc.) often aggregates

Envronment:

contact metamorphics,

Association:

diopside, wollastonite, idocrase

Locals:

| Kenya | South Africa | Italy | USSR | Canada | Mexico | Maine/USA |

Misc:

The name Grossular comes from the Latin Grossulara (the name of gooseberry fruit) which is the same color as the greenish variety of garnet. The name Hessonite comes from the Greek word meaning "less". Soluble in hot sulfuric acid.

Photos
& Locals:

1.) Jeffery Pit, Quebec, Canada
2.) Jeffery Pit, Quebec, Canada
3.) Jeffery Pit, Quebec, Canada
4.) Jeffrey Quarry, Quebec, Canada

5.) Jeffrey Quarry, Quebec, Canada
6.) Jeffrey Quarry, Quebec, Canada
7.) Jeffrey Quarry, Quebec, Canada

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