Spinel and Grossular Garnet Physical Properties

Spinel

Grossular Garnet

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.64-3.663.6

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

None, but may exhibit slight parting

None

1.7 Mohs Hardness

86.5-7.5

2 10

1.8 Chemical Composition

MgAl₂O₄

Ca₃Al₂Si₃O₁₂

Spinel and Grossular Garnet Chemical Formula

While comparing Spinel and Grossular Garnet 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 Spinel and Grossular Garnet chemical formula.

Chemical formula of Spinel- MgAl₂O₄
Chemical formula of Grossular Garnet- Ca₃Al₂Si₃O₁₂

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Spinel and Grossular Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Grossular Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Grossular Garnet Optical Properties during the identification of gemstone. Specific gravity of Spinel is 3.6 whereas that of Grossular Garnet is 3.6.