Hurlbutite and Star Sapphire Physical Properties

Hurlbutite

Star Sapphire

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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

2.903.90-4.05

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

6Not Available

2 10

1.8 Chemical Composition

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

Al 2O 3Ulrich Henn and Claudio C.

Hurlbutite and Star Sapphire Chemical Formula

While comparing Hurlbutite and Star Sapphire 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 Hurlbutite and Star Sapphire chemical formula.

Chemical formula of Hurlbutite- CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

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Hurlbutite and Star Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hurlbutite and Star Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hurlbutite and Star Sapphire Optical Properties during the identification of gemstone. Specific gravity of Hurlbutite is 3.90-4.05 whereas that of Star Sapphire is 3.90-4.05.