Tanzanite and Sunstone Physical Properties

Tanzanite

Sunstone

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

3.352.62-2.65

1 7.18

1.5 Fracture

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

Gemstones of the world (2001)

1.6 Cleavage

Perfect {010}, imperfect {100}

001

1.7 Mohs Hardness

6.5-76

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

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

Tanzanite and Sunstone Chemical Formula

While comparing Tanzanite 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 Tanzanite and Sunstone chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Compare Semi Precious Gemstones

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Tanzanite and Sunstone Specific Gravity

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