Almandine and Gaylussite Physical Properties

Almandine

Gaylussite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

decomposes in water

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.30

1.93-1.99

1.5 Fracture

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

Conchoidal, Conchoidal, Brittle

1.6 Cleavage

none

perfect [110]

1.7 Mohs Hardness

7-7.5

2.5

1.8 Chemical Composition

Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Na2Ca(CO3)2•5(H2O)

Almandine and Gaylussite Chemical Formula

While comparing Almandine and Gaylussite 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 Almandine and Gaylussite chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Gaylussite- Na2Ca(CO3)2•5(H2O)

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Almandine and Gaylussite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine and Gaylussite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Gaylussite Optical Properties during the identification of gemstone. Specific gravity of Almandine is 1.93-1.99 whereas that of Gaylussite is 1.93-1.99.