Sard and Siderite Physical Properties

Sard

Siderite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.633.83-3.89

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Uneven, Conchoidal, UnevenArthur Thomas, Brittle

1.6 Cleavage

Not Available

Perfect on {01 1 1}

1.7 Mohs Hardness

6.5-73.5-4.5

2 10

1.8 Chemical Composition

SiO 2Ulrich Henn and Claudio C.

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

Sard and Siderite Chemical Formula

While comparing Sard and Siderite 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 Sard and Siderite chemical formula.

Chemical formula of Sard- SiO 2Ulrich Henn and Claudio C.
Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Blue Gemstones

Sard Vs Sodalite

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Sard and Siderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sard and Siderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sard and Siderite Optical Properties during the identification of gemstone. Specific gravity of Sard is 3.83-3.89 whereas that of Siderite is 3.83-3.89.