Name: |
grossular Garnet (var Hessonite) |
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Class: |
Silicates |
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Chemistry: |
Ca3Al2(SiO4)3 Calcium aluminum silicate (Hessonite contains some iron) |
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Color(s): |
honey, brown, brown-orange Streak: white |
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Hardness: |
6.5 - 7.5 |
SpecGrav: |
3.59 - 3.68 |
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Fracture: |
conchoidal |
Cleavage: |
none |
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Crystal: |
isometric (icositetrahedron, dodecahedral etc.) often aggregates |
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Envronment: |
contact metamorphics, |
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Association: |
diopside, wollastonite, idocrase |
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Locals: |
| Kenya | South Africa | Italy | USSR | Canada | Mexico | Maine/USA | |
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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. |
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Photos |
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1.) Jeffery Pit, Quebec, Canada |
5.) Jeffrey Quarry, Quebec, Canada |
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