Moonstone and Sugilite Physical Properties

Moonstone

Sugilite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.56-2.602.69-2.79

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Conchoidal

Cleavage

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

Poor on {0001}

Mohs Hardness

6-6.55.5-6.5

2 10

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Chemical Composition

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

KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Moonstone and Sugilite Chemical Formula

While comparing Moonstone and Sugilite 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 Sugilite chemical formula.

Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈
Chemical formula of Sugilite- KNa 2(Fe3+ ,Mn3+ ,Al) 2Li 3Si 12O 30Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Semi Precious Gemstones

Moonstone Vs Rubellite

Moonstone Vs Schorlomite

Moonstone Vs Simpsonite

Moonstone and Sugilite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Moonstone and Sugilite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moonstone and Sugilite Optical Properties during the identification of gemstone. Specific gravity of Moonstone is 2.69-2.79 whereas that of Sugilite is 2.69-2.79.