Star Sapphire and Moonstone Physical Properties

Star Sapphire

Moonstone

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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

3.90-4.052.56-2.60

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Not Available

2,1 basal ; 2,1 prismatic ; 3,1 pinacoidal

1.7 Mohs Hardness

Not Available6-6.5

2 10

1.8 Chemical Composition

Al 2O 3Ulrich Henn and Claudio C.

Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

Star Sapphire and Moonstone Chemical Formula

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

Chemical formula of Star Sapphire- Al 2O 3Ulrich Henn and Claudio C.
Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

Compare Blue Gemstones

Star Sapphire Vs Tortoiseshell

Star Sapphire Vs Verdite

Star Sapphire Vs Tourmaline

Star Sapphire and Moonstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Star Sapphire and Moonstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Star Sapphire and Moonstone Optical Properties during the identification of gemstone. Specific gravity of Star Sapphire is 2.56-2.60 whereas that of Moonstone is 2.56-2.60.