Alexandrite and Narsarsukite Physical Properties

Alexandrite

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

3.69-3.812.72-2.83

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

1,1 ; 3,2.

Good on {100} and {110}

1.7 Mohs Hardness

8.56-7

2 10

1.8 Chemical Composition

BeAl ₂ O ₄

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

Alexandrite and Narsarsukite Chemical Formula

While comparing Alexandrite 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 Alexandrite and Narsarsukite chemical formula.

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

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Alexandrite and Narsarsukite Specific Gravity

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