Uvite and Star Sapphire Physical Properties

Uvite

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

2.97-3.143.90-4.05

1 7.18

1.5 Fracture

Uneven, Conchoidal, Brittle

Not Available

1.6 Cleavage

{1011} Indistinct

Not Available

1.7 Mohs Hardness

Not AvailableNot Available

2 10

1.8 Chemical Composition

Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Al 2O 3Ulrich Henn and Claudio C.

Uvite and Star Sapphire Chemical Formula

While comparing Uvite 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 Uvite and Star Sapphire chemical formula.

Chemical formula of Uvite- Ca(Mg 3)MgAl 5(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.

Compare Red Gemstones

Uvite Vs Willemite

Uvite Vs Yttrium Aluminium Garnet

Uvite Vs Wulfenite

Uvite and Star Sapphire Specific Gravity

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