Jeremejevite and Gahnite Physical Properties

Jeremejevite

Gahnite

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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

3.28-3.314.00-4.62

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Conchoidal, Uneven

1.6 Cleavage

None observed

Indistinct parting on [111]

1.7 Mohs Hardness

6.5-7.57.5-8

2 10

1.8 Chemical Composition

Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.

ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Jeremejevite and Gahnite Chemical Formula

While comparing Jeremejevite and Gahnite 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 Jeremejevite and Gahnite chemical formula.

Chemical formula of Jeremejevite- Al 6B 5O 15(F,OH) 3Ulrich Henn and Claudio C.
Chemical formula of Gahnite- ZnAl 2O 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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Jeremejevite and Gahnite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Jeremejevite and Gahnite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Jeremejevite and Gahnite Optical Properties during the identification of gemstone. Specific gravity of Jeremejevite is 4.00-4.62 whereas that of Gahnite is 4.00-4.62.