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Pleonaste
Pleonaste

Hessonite
Hessonite



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Hessonite
Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
3.80
-
Indistinct
8
(Mg,Fe)Al 2O 4Gemdat.org , Management Team (2012)
 
-
-
-
3.55-3.73
Uneven
None
7-7.5
Ca3Al2(SiO4)3