Jacobsite and Scapolite Physical Properties

Jacobsite

Scapolite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

4.76-5.032.58-2.74

1 7.18

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Fracture

Conchoidal

ConchoidalWalter Schumann, Splintery

Cleavage

None

{100} Distinct, {110} Distinct

Mohs Hardness

5.5-6.55.5-6

2 10

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Chemical Composition

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

Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

Jacobsite and Scapolite Chemical Formula

While comparing Jacobsite and Scapolite 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 Scapolite chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Scapolite- Na 4Al 3Si 9O 24Cl to Ca 4Al 6Si 6O 24(CO 3,SO 4)Walter Schumann , Gemstones of the world (2001) More from other references

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Jacobsite and Scapolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jacobsite and Scapolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Scapolite Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 2.58-2.74 whereas that of Scapolite is 2.58-2.74.