Violane and Siderite Physical Properties

Violane

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

3.22-3.403.83-3.89

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

5-63.5-4.5

2 10

1.8 Chemical Composition

(Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)

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

Violane and Siderite Chemical Formula

While comparing Violane 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 Violane and Siderite chemical formula.

Chemical formula of Violane- (Ca,Mg,Mn)SiO 3Gemdat.org , Management Team (2012)
Chemical formula of Siderite- Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Violane and Siderite Specific Gravity

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