Anorthite and Hurlbutite Physical Properties

Anorthite

Hurlbutite

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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

2.772.90

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

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

1.6 Cleavage

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

None

1.7 Mohs Hardness

6-6.56

2 10

1.8 Chemical Composition

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

CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Anorthite and Hurlbutite Chemical Formula

While comparing Anorthite and Hurlbutite 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 Hurlbutite chemical formula.

Chemical formula of Anorthite- CaAl 2Si 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)

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Anorthite and Hurlbutite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Anorthite and Hurlbutite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Anorthite and Hurlbutite Optical Properties during the identification of gemstone. Specific gravity of Anorthite is 2.90 whereas that of Hurlbutite is 2.90.