Almandine and Piemontite Physical Properties

Almandine

Piemontite

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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

Not Available

1.5 Fracture

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

Uneven, Splintery

1.6 Cleavage

none

[001] good, [100] distinct

1.7 Mohs Hardness

7-7.5

6-6.5

1.8 Chemical Composition

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

Not Available

Almandine and Piemontite Chemical Formula

While comparing Almandine and Piemontite 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 Piemontite chemical formula.

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

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Almandine and Piemontite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Almandine and Piemontite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Almandine and Piemontite Optical Properties during the identification of gemstone. Specific gravity of Almandine is Not Available whereas that of Piemontite is Not Available.