Alunite and Grossular Garnet Physical Properties

Alunite

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

2.6-2.9

3.6

1.5 Fracture

Conchoidal, Uneven

Not Available

1.6 Cleavage

On {0001}, perfect

None

1.7 Mohs Hardness

3.5-4

6.5-7.5

1.8 Chemical Composition

KAl3(SO4)2(OH)6

Ca₃Al₂Si₃O₁₂

Alunite and Grossular Garnet Chemical Formula

While comparing Alunite 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 Alunite and Grossular Garnet chemical formula.

Chemical formula of Alunite- KAl3(SO4)2(OH)6
Chemical formula of Grossular Garnet- Ca₃Al₂Si₃O₁₂

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Alunite and Grossular Garnet Specific Gravity

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