Almandine and Mellite Physical Properties

Almandine

Mellite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.30

1.58-1.60

1.5 Fracture

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

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle

1.6 Cleavage

none

{011} Imperfect

1.7 Mohs Hardness

7-7.5

1.8 Chemical Composition

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

Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Almandine and Mellite Chemical Formula

While comparing Almandine and Mellite 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 Mellite chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Mellite- Al 2(Cl 2O 12) · 18H 2OUlrich Henn and Claudio C.

Compare Red Gemstones

Almandine Vs Aragonite

Almandine Vs Black Opal

Almandine Vs Baryte Barite

Almandine and Mellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine and Mellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Mellite Optical Properties during the identification of gemstone. Specific gravity of Almandine is 1.58-1.60 whereas that of Mellite is 1.58-1.60.