Gahnospinel and Apophyllite Physical Properties

Gahnospinel

Apophyllite

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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

3.65-4.552.30-2.50

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009)

Uneven, UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

None, but may exhibit slight parting

Perfect on (001)

1.7 Mohs Hardness

7.5-84.5-5

2 10

1.8 Chemical Composition

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Gahnospinel and Apophyllite Chemical Formula

While comparing Gahnospinel and Apophyllite 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 Gahnospinel and Apophyllite chemical formula.

Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Apophyllite- KCa 4Si 8O 20(F,OH) · 8H 2OUlrich Henn and Claudio C.

Compare Blue Gemstones

Gahnospinel Vs Hydrogrossular

Gahnospinel Vs Indicolite Blue Tourmaline

Gahnospinel Vs Jeremejevite

Gahnospinel and Apophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnospinel and Apophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Apophyllite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 2.30-2.50 whereas that of Apophyllite is 2.30-2.50.