Montebrasite and Moonstone Physical Properties

Montebrasite

Moonstone

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

2.98-3.102.56-2.60

1 7.18

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Fracture

Uneven, Conchoidal

Uneven, ConchoidalWalter Schumann

Cleavage

{100} Perfect, {110} Good, {011} Distinct

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

Mohs Hardness

5.5-66-6.5

2 10

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Chemical Composition

LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references

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

Montebrasite and Moonstone Chemical Formula

While comparing Montebrasite 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 Montebrasite and Moonstone chemical formula.

Chemical formula of Montebrasite- LiAl(PO 4)(OH,F)Walter Schumann , Gemstones of the world (2001) More from other references
Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

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Montebrasite and Moonstone Specific Gravity

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