Celestine and Bertrandite Physical Properties

Celestine

Bertrandite

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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

3.90-4.002.59-2.60

1 7.18

1.5 Fracture

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

Brittle, Metallic, Brittle, Metallic

1.6 Cleavage

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

{001} Perfect, {110} Distinct, {101} Distinct

1.7 Mohs Hardness

3-3.56-7

2 10

1.8 Chemical Composition

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

Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

Celestine and Bertrandite Chemical Formula

While comparing Celestine and Bertrandite 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 Bertrandite chemical formula.

Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Bertrandite- Be 4Si 2O 7(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Celestine and Bertrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Celestine and Bertrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Celestine and Bertrandite Optical Properties during the identification of gemstone. Specific gravity of Celestine is 2.59-2.60 whereas that of Bertrandite is 2.59-2.60.