Glass and Alunite Physical Properties

Glass

Alunite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.39-4.002.6-2.9

1 7.18

1.5 Fracture

ConchoidalGemdat.org, Management Team (2012), ConchoidalGemdat.org, Management Team (2012)

Conchoidal, Uneven

1.6 Cleavage

Not Available

On {0001}, perfect

1.7 Mohs Hardness

4-63.5-4

2 10

1.8 Chemical Composition

Not Available

KAl3(SO4)2(OH)6

Glass and Alunite Chemical Formula

While comparing Glass and Alunite 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 Glass and Alunite chemical formula.

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

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Glass and Alunite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Glass and Alunite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Glass and Alunite Optical Properties during the identification of gemstone. Specific gravity of Glass is 2.6-2.9 whereas that of Alunite is 2.6-2.9.