Hardystonite and Celestine Physical Properties

Hardystonite

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

3.396-3.4433.90-4.00

1 7.18

1.5 Fracture

Brittle, Metallic

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

1.6 Cleavage

[001] good, [100] and [110] fair

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

1.7 Mohs Hardness

3-43-3.5

2 10

1.8 Chemical Composition

Ca 2ZnSi 2O 7Anthony et al , Handbook of mineralogy (2001)

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

Hardystonite and Celestine Chemical Formula

While comparing Hardystonite 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 Hardystonite and Celestine chemical formula.

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

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Hardystonite and Celestine Specific Gravity

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