Shigaite and Moonstone Physical Properties

Shigaite

Moonstone

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1 Physical Properties

1.1 Tenacity

Moderately ﬂexible

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.322.56-2.60

1 7.18

1.5 Fracture

Flexible Flexible fragments.

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

1.6 Cleavage

Perfect on {0001}

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

1.7 Mohs Hardness

26-6.5

2 10

1.8 Chemical Composition

Not Available

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

Shigaite and Moonstone Chemical Formula

While comparing Shigaite 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 Shigaite 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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Shigaite and Moonstone Specific Gravity

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