Sellaite and Celestine Physical Properties

Sellaite

Celestine

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.14-3.163.90-4.00

1 7.18

1.5 Fracture

Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle

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

1.6 Cleavage

Perfect on {010} and {110}

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

1.7 Mohs Hardness

5-5.53-3.5

2 10

1.8 Chemical Composition

MgF 2Ulrich Henn and Claudio C.

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

Sellaite and Celestine Chemical Formula

While comparing Sellaite 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 Sellaite and Celestine chemical formula.

Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.
Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Sellaite and Celestine Specific Gravity

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