Anorthite and Cobaltite Physical Properties

Anorthite

Cobaltite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.776.3

1 7.18

1.9 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, UnevenAnthony et al, Handbook of mineralogy (2001) More from other references, Brittle, Metallic

1.11 Cleavage

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

{100} Good, {010} Good, {001} Good

1.12 Mohs Hardness

6-6.55.5

2 10

2.5 Chemical Composition

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

CoAsSAnthony et al , Handbook of mineralogy (2001)

Anorthite and Cobaltite Chemical Formula

While comparing Anorthite and Cobaltite 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 Anorthite and Cobaltite chemical formula.

Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Cobaltite- CoAsSAnthony et al , Handbook of mineralogy (2001)

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Anorthite and Cobaltite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anorthite and Cobaltite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anorthite and Cobaltite Optical Properties during the identification of gemstone. Specific gravity of Anorthite is 6.3 whereas that of Cobaltite is 6.3.