Riebeckite and Moonstone Physical Properties

Riebeckite

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

3.28-3.442.56-2.60

1 7.18

1.5 Fracture

Uneven, Splintery, Brittle

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

1.6 Cleavage

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

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

1.7 Mohs Hardness

5.0-6.06-6.5

2 10

1.8 Chemical Composition

Not Available

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

Riebeckite and Moonstone Chemical Formula

While comparing Riebeckite 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 Riebeckite and Moonstone chemical formula.

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

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Riebeckite and Moonstone Specific Gravity

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