Muscovite and Almandine Physical Properties

Muscovite

Almandine

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1 Physical Properties

1.1 Tenacity

Elastic

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.78-2.883.95-4.30

1 7.18

1.5 Fracture

Micaceous, Brittle

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

1.6 Cleavage

Perfect on the {001}

none

1.7 Mohs Hardness

2-37-7.5

2 10

1.8 Chemical Composition

KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

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

Muscovite and Almandine Chemical Formula

While comparing Muscovite and Almandine 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 Muscovite and Almandine chemical formula.

Chemical formula of Muscovite- KAl 2AlSi 3O 10(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Muscovite and Almandine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Muscovite and Almandine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Muscovite and Almandine Optical Properties during the identification of gemstone. Specific gravity of Muscovite is 3.95-4.30 whereas that of Almandine is 3.95-4.30.