Celestine and Dumortierite Physical Properties

Celestine

Dumortierite

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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

3.90-4.003.26-3.41

1 7.18

1.5 Fracture

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

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

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

Distinct on {100}, poor on {110}; parting on {001}

1.7 Mohs Hardness

3-3.57-8.5

2 10

1.8 Chemical Composition

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

AlAl₆O₃BSi₃O₁₈

Celestine and Dumortierite Chemical Formula

While comparing Celestine and Dumortierite 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 Dumortierite chemical formula.

Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Celestine and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Celestine and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Celestine and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Celestine is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.