Phenakite and Andesine Physical Properties

Phenakite

Andesine

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.2 Durability

Not Available

1.4 Specific Gravity

2.90-2.982.65-2.69

1 7.18

1.6 Fracture

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

Uneven, Uneven, Conchoidal, Uneven, Gems, Sixth Edition (2006)

1.7 Cleavage

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

Perfect on {001}, good on {010}

1.8 Mohs Hardness

7.5-86-6.5

2 10

1.11 Chemical Composition

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

(Na,Ca)Al_1-2Si_3-2O₈

Phenakite and Andesine Chemical Formula

While comparing Phenakite and Andesine 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 Andesine chemical formula.

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

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Phenakite and Andesine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phenakite and Andesine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phenakite and Andesine Optical Properties during the identification of gemstone. Specific gravity of Phenakite is 2.65-2.69 whereas that of Andesine is 2.65-2.69.