Verdelite and Narsarsukite Physical Properties

Verdelite

Narsarsukite

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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

2.90-3.402.72-2.83

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Not Available

Good on {100} and {110}

1.7 Mohs Hardness

7-7.56-7

2 10

1.8 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.

Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

Verdelite and Narsarsukite Chemical Formula

While comparing Verdelite and Narsarsukite 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 Narsarsukite 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.
Chemical formula of Narsarsukite- Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

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Verdelite and Narsarsukite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Verdelite and Narsarsukite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Verdelite and Narsarsukite Optical Properties during the identification of gemstone. Specific gravity of Verdelite is 2.72-2.83 whereas that of Narsarsukite is 2.72-2.83.