Herderite and Celestine Physical Properties

Herderite

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

2.90-3.023.90-4.00

1 7.18

1.5 Fracture

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

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

1.6 Cleavage

Indistinct on {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

CaBePO 4(F,OH)Ulrich Henn and Claudio C.

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

Herderite and Celestine Chemical Formula

While comparing Herderite 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 Herderite and Celestine chemical formula.

Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Chemical formula of Celestine- SrSO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Herderite and Celestine Specific Gravity

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