Prase and Almandine Physical Properties

Prase

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

2.64-2.693.95-4.30

1 7.18

1.5 Fracture

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)

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

1.6 Cleavage

Not Available

none

1.7 Mohs Hardness

77-7.5

2 10

1.8 Chemical Composition

SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Prase and Almandine Chemical Formula

While comparing Prase 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 Prase and Almandine chemical formula.

Chemical formula of Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Compare Blue Gemstones

Prase Vs Rubellite

Prase Vs Sapphire

Prase Vs Sanidine

Prase and Almandine Specific Gravity

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