Jacobsite and Celestine Physical Properties

Jacobsite

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

4.76-5.033.90-4.00

1 7.18

1.5 Fracture

Conchoidal, Brittle

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

1.6 Cleavage

None

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

1.7 Mohs Hardness

5.5-6.53-3.5

2 10

1.8 Chemical Composition

(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)

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

Jacobsite and Celestine Chemical Formula

While comparing Jacobsite 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 Jacobsite and Celestine chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony 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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Jacobsite and Celestine Specific Gravity

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