Jacobsite and Nephrite Physical Properties

Jacobsite

Nephrite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.76-5.032.90-3.10

1 7.18

1.5 Fracture

Conchoidal, Brittle

Splintery, Granular, Splintery, Granular, Gemstones (2009)

1.6 Cleavage

None

Not Available

1.7 Mohs Hardness

5.5-6.56-6.5

2 10

1.8 Chemical Composition

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

Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

Jacobsite and Nephrite Chemical Formula

While comparing Jacobsite and Nephrite 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 Nephrite chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Nephrite- Ca 2(Mg,Fe) 5(OH) 2Walter Schumann , Gemstones of the world (2001) More from other references

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Jacobsite and Nephrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jacobsite and Nephrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Nephrite Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 2.90-3.10 whereas that of Nephrite is 2.90-3.10.