Strontianite and Verdelite Physical Properties

Strontianite

Verdelite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.63-3.79

2.90-3.40

1.5 Fracture

Uneven, Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

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

1.6 Cleavage

{110} Good

Not Available

1.7 Mohs Hardness

3.5

7-7.5

1.8 Chemical Composition

SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references

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.

Strontianite and Verdelite Chemical Formula

While comparing Strontianite 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 Strontianite and Verdelite chemical formula.

Chemical formula of Strontianite- SrCO 3Walter Schumann , Gemstones of the world (2001) More from other references
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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Strontianite and Verdelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Strontianite and Verdelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Strontianite and Verdelite Optical Properties during the identification of gemstone. Specific gravity of Strontianite is 2.90-3.40 whereas that of Verdelite is 2.90-3.40.