Spessartine and Anorthite Physical Properties

Spessartine

Anorthite

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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

4.12-4.182.77

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Conchoidal, Brittle

Uneven, Uneven, Gems, Sixth Edition (2006)

1.6 Cleavage

{???} Distinct

Perfect [001] good [010] poor [110]

1.7 Mohs Hardness

7-7.56-6.5

2 10

1.8 Chemical Composition

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

CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Spessartine and Anorthite Chemical Formula

While comparing Spessartine and Anorthite 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 Spessartine and Anorthite chemical formula.

Chemical formula of Spessartine- Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Red Gemstones

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Spessartine Vs Triplite

Spessartine and Anorthite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spessartine and Anorthite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spessartine and Anorthite Optical Properties during the identification of gemstone. Specific gravity of Spessartine is 2.77 whereas that of Anorthite is 2.77.