Verdelite and Phlogopite Physical Properties
Tenacity
Not Available
Tough
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.90-3.40
2.78-2.85
Fracture
ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)
None, Uneven
Cleavage
Not Available
Perfect basal (001)
Mohs Hardness
7-7.5
2-2.5
Chemical Composition
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.
Not Available
Verdelite and Phlogopite Chemical Formula
While comparing Verdelite and Phlogopite 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 Phlogopite chemical formula.
- Chemical formula of Verdelite- 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.
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Verdelite and Phlogopite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Verdelite and Phlogopite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Verdelite and Phlogopite Optical Properties during the identification of gemstone. Specific gravity of Verdelite is 2.78-2.85 whereas that of Phlogopite is 2.78-2.85.