Nepouite and Grandidierite Physical Properties

Nepouite

Grandidierite

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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

3.18-3.242.85-3.00

1 7.18

1.5 Fracture

Not Available

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

1.6 Cleavage

perfect on {001}

Perfect

1.7 Mohs Hardness

27.5

2 10

1.8 Chemical Composition

Not Available

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Nepouite and Grandidierite Chemical Formula

While comparing Nepouite and Grandidierite 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 Nepouite and Grandidierite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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Nepouite and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Nepouite and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Nepouite and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Nepouite is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.