Andalusite and Narsarsukite Physical Properties

Andalusite

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

3.05-3.212.72-2.83

1 7.18

1.5 Fracture

Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Good on {110}, poor on {100}

Good on {100} and {110}

1.7 Mohs Hardness

7.56-7

2 10

1.8 Chemical Composition

Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references

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

Andalusite and Narsarsukite Chemical Formula

While comparing Andalusite 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 Andalusite and Narsarsukite chemical formula.

Chemical formula of Andalusite- Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Chemical formula of Narsarsukite- Na 2(Ti,Fe)Si 4(O,F) 11Ulrich Henn and Claudio C.

Compare Brown Gemstones

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Andalusite and Narsarsukite Specific Gravity

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