Piemontite and Sunstone Physical Properties

Piemontite

Sunstone

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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

Not Available2.62-2.65

1 7.18

1.5 Fracture

Uneven, Splintery

Gemstones of the world (2001)

1.6 Cleavage

[001] good, [100] distinct

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

Piemontite and Sunstone Chemical Formula

While comparing Piemontite 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 Piemontite and Sunstone chemical formula.

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

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Piemontite and Sunstone Specific Gravity

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