Thulite and Gahnospinel Physical Properties

Thulite

Gahnospinel

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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

3.13.65-4.55

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

Perfect {010} imperfect {100}

None, but may exhibit slight parting

1.7 Mohs Hardness

6-77.5-8

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

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

Thulite and Gahnospinel Chemical Formula

While comparing Thulite and Gahnospinel 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 Thulite and Gahnospinel chemical formula.

Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

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Thulite and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thulite and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Thulite is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.