Polyhalite and Grossular Garnet Physical Properties

Polyhalite

Grossular Garnet

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.783.6

1 7.18

1.5 Fracture

Conchoidal, Brittle

Not Available

1.6 Cleavage

Perfect on {10 1 }; parting on {010}

None

1.7 Mohs Hardness

3.56.5-7.5

2 10

1.8 Chemical Composition

Not Available

Ca₃Al₂Si₃O₁₂

Polyhalite and Grossular Garnet Chemical Formula

While comparing Polyhalite 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 Polyhalite and Grossular Garnet chemical formula.

Chemical formula of Grossular Garnet- Ca₃Al₂Si₃O₁₂

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Polyhalite and Grossular Garnet Specific Gravity

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