Siderite and Phenakite Physical Properties

Siderite

Phenakite

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Physical Properties

Tenacity

Brittle

Solubility

Durability

Specific Gravity

3.83-3.892.90-2.98

1 7.18

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Fracture

Uneven, Conchoidal

Conchoidal, ConchoidalWalter Schumann

Cleavage

Perfect on {01 1 1}

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

Mohs Hardness

3.5-4.57.5-8

2 10

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Chemical Composition

Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Siderite and Phenakite Chemical Formula

While comparing Siderite 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 Siderite and Phenakite chemical formula.

Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Phenakite- Be 2SiO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Siderite and Phenakite Specific Gravity

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