Feldspar and Sunstone Physical Properties

Feldspar

Sunstone

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.56-2.752.62-2.65

1 7.18

1.5 Fracture

Uneven, Conchoidal, Uneven, Conchoidal, Gemstones of the world (2001)

Gemstones of the world (2001)

1.6 Cleavage

two or three

001

1.7 Mohs Hardness

6-6.56

2 10

1.8 Chemical Composition

Not Available

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Feldspar and Sunstone Chemical Formula

While comparing Feldspar and Sunstone 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 Feldspar and Sunstone chemical formula.

Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

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Feldspar and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Feldspar and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Feldspar and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Feldspar is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.