Almandine and Diopside Physical Properties

Almandine

Diopside

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.30

3.22-3.40

1.5 Fracture

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

Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Conchoidal

1.6 Cleavage

none

Distinct/good on {110}

1.7 Mohs Hardness

7-7.5

5-6

1.8 Chemical Composition

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

CaMgSi₂O₆

Almandine and Diopside Chemical Formula

While comparing Almandine and Diopside 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 Diopside chemical formula.

Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Diopside- CaMgSi₂O₆

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Almandine and Diopside Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine and Diopside Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Diopside Optical Properties during the identification of gemstone. Specific gravity of Almandine is 3.22-3.40 whereas that of Diopside is 3.22-3.40.