Baddeleyite and Alunite Physical Properties

Baddeleyite

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

5.5-6.02.6-2.9

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

Conchoidal, Uneven

1.6 Cleavage

{001} Distinct

On {0001}, perfect

1.7 Mohs Hardness

6.53.5-4

2 10

1.8 Chemical Composition

ZrO 2Arthur Thomas , Gemstones (2009)

KAl3(SO4)2(OH)6

Baddeleyite and Alunite Chemical Formula

While comparing Baddeleyite 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 Baddeleyite and Alunite chemical formula.

Chemical formula of Baddeleyite- ZrO 2Arthur Thomas , Gemstones (2009)
Chemical formula of Alunite- KAl3(SO4)2(OH)6

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Baddeleyite and Alunite Specific Gravity

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