Poldervaartite and Verdelite Physical Properties

Poldervaartite

Verdelite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.91

None

-9999

(Ca,Mn2+ ) 2(SiO 3OH)(OH)Anthony et al , Handbook of Mineralogy (2001)

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.

Poldervaartite and Verdelite Chemical Formula

While comparing Poldervaartite and Verdelite 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 Poldervaartite and Verdelite chemical formula.

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Poldervaartite and Verdelite Specific Gravity

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