Gahnospinel and Erythrite Physical Properties

Gahnospinel

Erythrite

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1 Physical Properties

1.1 Tenacity

Not Available

Sectile

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.65-4.553.06

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009)

Sectile Curved shavings or scrapings produced by a knife blade, (e.g. graphite).

1.6 Cleavage

None, but may exhibit slight parting

Perfect on {010}; poor on {100} and { 1 02}.

1.7 Mohs Hardness

7.5-8Not Available

2 10

1.8 Chemical Composition

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

Co3(AsO4)2•8(H2O)

Gahnospinel and Erythrite Chemical Formula

While comparing Gahnospinel and Erythrite 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 Erythrite chemical formula.

Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Erythrite- Co3(AsO4)2•8(H2O)

Compare Blue Gemstones

Gahnospinel Vs Indicolite Blue Tourmaline

Gahnospinel Vs Hydrogrossular

Gahnospinel Vs Jeremejevite

Gahnospinel and Erythrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnospinel and Erythrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Erythrite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 3.06 whereas that of Erythrite is 3.06.