Peridot and Grandidierite Physical Properties

Peridot

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

1.54-1.552.85-3.00

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

Poor

Perfect

1.7 Mohs Hardness

6.5-77.5

2 10

1.8 Chemical Composition

(Mg,Fe)₂SiO₄

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

Peridot and Grandidierite Chemical Formula

While comparing Peridot 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 Peridot and Grandidierite chemical formula.

Chemical formula of Peridot- (Mg,Fe)₂SiO₄
Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Compare Semi Precious Gemstones

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Peridot and Grandidierite Specific Gravity

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