Moonstone and Pollucite Physical Properties

Moonstone

Pollucite

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Physical Properties

Tenacity

Brittle

Solubility

Readily soluble in HF

Durability

Specific Gravity

2.56-2.602.86-2.94

1 7.18

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Fracture

Uneven, ConchoidalWalter Schumann

Conchoidal, Uneven

Cleavage

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

None observed

Mohs Hardness

6-6.56.5-7

2 10

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Chemical Composition

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

(Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Moonstone and Pollucite Chemical Formula

While comparing Moonstone and Pollucite 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 Pollucite chemical formula.

Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈
Chemical formula of Pollucite- (Cs,Na)(AlSi 2O 6) · 0.5H 2OWalter Schumann , Gemstones of the world (2001) More from other references

Compare Semi Precious Gemstones

Moonstone Vs Rubellite

Moonstone Vs Schorlomite

Moonstone Vs Simpsonite

Moonstone and Pollucite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Moonstone and Pollucite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Moonstone and Pollucite Optical Properties during the identification of gemstone. Specific gravity of Moonstone is 2.86-2.94 whereas that of Pollucite is 2.86-2.94.