Dumortierite and Celestine Physical Properties

Dumortierite

Celestine

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.26-3.413.90-4.00

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

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

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

1.7 Mohs Hardness

7-8.53-3.5

2 10

1.8 Chemical Composition

AlAl₆O₃BSi₃O₁₈

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

Dumortierite and Celestine Chemical Formula

While comparing Dumortierite and Celestine 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 Dumortierite and Celestine chemical formula.

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

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Dumortierite and Celestine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dumortierite and Celestine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dumortierite and Celestine Optical Properties during the identification of gemstone. Specific gravity of Dumortierite is 3.90-4.00 whereas that of Celestine is 3.90-4.00.