Pumpellyite and Almandine Physical Properties

Pumpellyite

Almandine

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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

3.20-3.30

3.95-4.30

1.5 Fracture

Not Available

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

1.6 Cleavage

Not Available

none

1.7 Mohs Hardness

5-6

7-7.5

1.8 Chemical Composition

Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.

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

Pumpellyite and Almandine Chemical Formula

While comparing Pumpellyite 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 Pumpellyite and Almandine chemical formula.

Chemical formula of Pumpellyite- Ca 2(Mg,Fe,Mn,Al) 2(SiO 4)(Si 2O 7)(OH) 2 · H 2OUlrich Henn and Claudio C.
Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Compare Green Gemstones

Pumpellyite Vs Rubellite

Pumpellyite Vs Sapphire

Pumpellyite Vs Rutilated Quartz

Pumpellyite and Almandine Specific Gravity

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