Ruby and Moonstone Physical Properties

Ruby

Moonstone

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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

3.97-4.052.56-2.60

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

No true cleavage

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

1.7 Mohs Hardness

96-6.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Ruby and Moonstone Chemical Formula

While comparing Ruby 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 Ruby and Moonstone chemical formula.

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

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Ruby and Moonstone Specific Gravity

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