Moonstone and Sapphire Physical Properties

Moonstone

Sapphire

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

insoluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.56-2.603.95-4.03

1 7.18

1.8 Fracture

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

Uneven, Uneven, Gems, Sixth Edition (2006)

1.9 Cleavage

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

None, but may exhibit parting

1.10 Mohs Hardness

6-6.59

2 10

1.12 Chemical Composition

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

Al ₂ O ₃

Moonstone and Sapphire Chemical Formula

While comparing Moonstone and 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 Moonstone and Sapphire chemical formula.

Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈
Chemical formula of Sapphire- Al ₂ O ₃

Compare Semi Precious Gemstones

Moonstone Vs Alexandrite

Moonstone Vs Peridot

Moonstone Vs Lehsunia

Moonstone and Sapphire Specific Gravity

Another important criteria for qualitative analysis of gemstones is Moonstone and Sapphire Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moonstone and Sapphire Optical Properties during the identification of gemstone. Specific gravity of Moonstone is 3.95-4.03 whereas that of Sapphire is 3.95-4.03.