Prehnite and Moonstone Physical Properties

Prehnite

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

2.80-2.952.56-2.60

1 7.18

1.5 Fracture

Uneven, Yellow, White, UnevenWalter Schumann, Gemstones of the world (2001) More from other references, Brittle, Metallic

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

1.6 Cleavage

Distinct on [001]

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

1.7 Mohs Hardness

6-6.56-6.5

2 10

1.8 Chemical Composition

Ca₂Al₂Si₃O₁₂(OH)

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

Prehnite and Moonstone Chemical Formula

While comparing Prehnite 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 Prehnite and Moonstone chemical formula.

Chemical formula of Prehnite- Ca₂Al₂Si₃O₁₂(OH)
Chemical formula of Moonstone- Plagioclase Feldspar s: (Na,Ca)Al_1-2Si_3-2O₈ Orthoclase Feldspar : KAlSi₃O₈

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Prehnite and Moonstone Specific Gravity

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