Grandidierite and Hexagonite Physical Properties

Grandidierite

Hexagonite

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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

2.85-3.002.98-3.03

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

Perfect

[110] perfect; [010] distinct

1.7 Mohs Hardness

7.55-6

2 10

1.8 Chemical Composition

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

Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

Grandidierite and Hexagonite Chemical Formula

While comparing Grandidierite and Hexagonite 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 Grandidierite and Hexagonite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Chemical formula of Hexagonite- Ca 2Mg 5Si 8O 22(OH) 2Ulrich Henn and Claudio C.

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Grandidierite and Hexagonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Grandidierite and Hexagonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Hexagonite Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 2.98-3.03 whereas that of Hexagonite is 2.98-3.03.