Phenakite and Sunstone Physical Properties

Phenakite

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

2.90-2.982.62-2.65

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001), Brittle

Gemstones of the world (2001)

1.6 Cleavage

Distinct on {11 2 0}, imperfect on {10 1 1}

001

1.7 Mohs Hardness

7.5-86

2 10

1.8 Chemical Composition

Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Phenakite and Sunstone Chemical Formula

While comparing Phenakite 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 Phenakite and Sunstone chemical formula.

Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Compare Colorless Gems

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Phenakite and Sunstone Specific Gravity

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