Norbergite and Almandine Physical Properties

Norbergite

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

3.177

3.95-4.30

1.5 Fracture

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

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

1.6 Cleavage

{???} Distinct

none

1.7 Mohs Hardness

6-6.5

7-7.5

1.8 Chemical Composition

Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)

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

Norbergite and Almandine Chemical Formula

While comparing Norbergite 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 Norbergite and Almandine chemical formula.

Chemical formula of Norbergite- Mg 3(SiO 4)(F,OH) 2Anthony et al , Handbook of Mineralogy (2001)
Chemical formula of Almandine- Fe 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Norbergite and Almandine Specific Gravity

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