Gahnospinel and Herderite Physical Properties

Gahnospinel

Herderite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

3.65-4.552.90-3.02

1 7.18

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Fracture

Conchoidal

Subconchoidal, Conchoidal

Cleavage

None, but may exhibit slight parting

Indistinct on {110}

Mohs Hardness

7.5-85-5.5

2 10

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Chemical Composition

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

CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Gahnospinel and Herderite Chemical Formula

While comparing Gahnospinel and Herderite 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 Herderite chemical formula.

Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Compare Blue Gemstones

Gahnospinel Vs Jeremejevite

Gahnospinel Vs Lazurite

Gahnospinel Vs Linarite

Gahnospinel and Herderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnospinel and Herderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Herderite Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 2.90-3.02 whereas that of Herderite is 2.90-3.02.