Rhodolite and Grandidierite Physical Properties

Rhodolite

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

3.842.85-3.00

1 7.18

1.5 Fracture

Conchoidal

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

1.6 Cleavage

none, may show indistinct parting

Perfect

1.7 Mohs Hardness

7-7.57.5

2 10

1.8 Chemical Composition

(Mg,Fe)₃Al₂Si₃O₁₂

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

Rhodolite and Grandidierite Chemical Formula

While comparing Rhodolite 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 Rhodolite and Grandidierite chemical formula.

Chemical formula of Rhodolite- (Mg,Fe)₃Al₂Si₃O₁₂
Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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Rhodolite and Grandidierite Specific Gravity

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