Spinel and Phenakite Physical Properties

Spinel

Phenakite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.64-3.662.90-2.98

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

None, but may exhibit slight parting

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

1.7 Mohs Hardness

87.5-8

2 10

1.8 Chemical Composition

MgAl₂O₄

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

Spinel and Phenakite Chemical Formula

While comparing Spinel and Phenakite 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 Spinel and Phenakite chemical formula.

Chemical formula of Spinel- MgAl₂O₄
Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Spinel and Phenakite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Spinel and Phenakite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Spinel and Phenakite Optical Properties during the identification of gemstone. Specific gravity of Spinel is 2.90-2.98 whereas that of Phenakite is 2.90-2.98.