Scorodite and Alunite Physical Properties

Scorodite

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

Not Available2.6-2.9

1 7.18

1.5 Fracture

Sub-Conchoidal, Splintery

Conchoidal, Uneven

1.6 Cleavage

{201} Imperfect, {100} Poor, {001} Poor

On {0001}, perfect

1.7 Mohs Hardness

3.5-43.5-4

2 10

1.8 Chemical Composition

Not Available

KAl3(SO4)2(OH)6

Scorodite and Alunite Chemical Formula

While comparing Scorodite 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 Scorodite and Alunite chemical formula.

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

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Scorodite and Alunite Specific Gravity

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