Jacobsite and Albite Physical Properties

Jacobsite

Albite

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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

4.76-5.032.60-2.65

1 7.18

1.5 Fracture

Conchoidal, Brittle

Uneven, Uneven, Gems, Sixth Edition (2006), Uneven, Conchoidal

1.6 Cleavage

None

Perfect on {001}, very good on {010}, imperfect on {110}

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)

NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Jacobsite and Albite Chemical Formula

While comparing Jacobsite and Albite 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 Albite chemical formula.

Chemical formula of Jacobsite- (Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Albite- NaAlSi 3O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Jacobsite and Albite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jacobsite and Albite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jacobsite and Albite Optical Properties during the identification of gemstone. Specific gravity of Jacobsite is 2.60-2.65 whereas that of Albite is 2.60-2.65.