Verdelite and Siderite Physical Properties

Verdelite

Siderite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.90-3.40

Conchoidal

Indiscernible

7-7.5

Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.

Brittle

3.83-3.89

Uneven, Conchoidal

Perfect on {01 1 1}

3.5-4.5

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

Verdelite and Siderite Chemical Formula

While comparing Verdelite 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 Verdelite and Siderite chemical formula.

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Verdelite and Siderite Specific Gravity

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