Grandidierite and Richterite Physical Properties

Grandidierite

Richterite

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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

2.85-3.003.0-3.5

1 7.18

1.5 Fracture

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

Uneven, Brittle

1.6 Cleavage

Perfect

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.

Not Available

Grandidierite and Richterite Chemical Formula

While comparing Grandidierite and Richterite 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 Richterite chemical formula.

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

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Grandidierite and Richterite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Grandidierite and Richterite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Richterite Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 3.0-3.5 whereas that of Richterite is 3.0-3.5.