Siderite and Pyrophyllite Physical Properties

Siderite

Pyrophyllite

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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

3.83-3.892.65-2.90

1 7.18

1.5 Fracture

Uneven, Conchoidal, UnevenArthur Thomas, Brittle

Gemstones (2009), Flexible Flexible fragments.

1.6 Cleavage

Perfect on {01 1 1}

{001} Perfect

1.7 Mohs Hardness

3.5-4.5Not Available

2 10

1.8 Chemical Composition

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

Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Siderite and Pyrophyllite Chemical Formula

While comparing Siderite and Pyrophyllite 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 Pyrophyllite chemical formula.

Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Pyrophyllite- Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Siderite and Pyrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Siderite and Pyrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Siderite and Pyrophyllite Optical Properties during the identification of gemstone. Specific gravity of Siderite is 2.65-2.90 whereas that of Pyrophyllite is 2.65-2.90.