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Obsidian
Obsidian

Grossular
Grossular



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Obsidian
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Grossular

Obsidian and Grossular Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Not Available
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.35-2.603.55-3.73
Amber
1 7.18
1.5 Fracture
Conchoidal, ConchoidalWalter Schumann, Conchoidal
Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
1.6 Cleavage
Not Available
none
1.7 Mohs Hardness
5-5.57-7.5
Amber
2 10
1.8 Chemical Composition
Not Available
Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Obsidian and Grossular Chemical Formula

While comparing Obsidian and Grossular physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Obsidian and Grossular chemical formula.

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  • Chemical formula of Grossular- Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Obsidian and Grossular Specific Gravity

Another important criteria for qualitative analysis of gemstones is Obsidian and Grossular Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Obsidian and Grossular Optical Properties during the identification of gemstone. Specific gravity of Obsidian is 3.55-3.73 whereas that of Grossular is 3.55-3.73.