Celestine and Grandidierite Physical Properties

Celestine

Grandidierite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.90-4.002.85-3.00

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

Perfect on {001}, good on {210}, poor on {010}

Perfect

1.7 Mohs Hardness

3-3.57.5

2 10

1.8 Chemical Composition

SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Celestine and Grandidierite Chemical Formula

While comparing Celestine 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 Celestine and Grandidierite chemical formula.

Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

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Celestine and Grandidierite Specific Gravity

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