Siderite and Creedite Physical Properties

Siderite

Creedite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.83-3.892.70

1 7.18

1.5 Fracture

Uneven, Conchoidal, UnevenArthur Thomas, Brittle

Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Perfect on {01 1 1}

Perfect on {100}

1.7 Mohs Hardness

3.5-4.54.5

2 10

1.8 Chemical Composition

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

Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

Siderite and Creedite Chemical Formula

While comparing Siderite and Creedite 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 Creedite chemical formula.

Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Creedite- Ca 3Al 2(SO 4)(F,OH) 10Ulrich Henn and Claudio C.

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Siderite and Creedite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Siderite and Creedite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Siderite and Creedite Optical Properties during the identification of gemstone. Specific gravity of Siderite is 2.70 whereas that of Creedite is 2.70.