Thulite and Gaspeite Physical Properties

Thulite

Gaspeite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

HCl soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.13.71

1 7.18

1.5 Fracture

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

Uneven

1.6 Cleavage

Perfect {010} imperfect {100}

{10 1 1} Good

1.7 Mohs Hardness

6-74.5-5

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

(Ni,Mg,Fe++)CO3

Thulite and Gaspeite Chemical Formula

While comparing Thulite and Gaspeite 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 Gaspeite chemical formula.

Chemical formula of Thulite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Gaspeite- (Ni,Mg,Fe++)CO3

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Thulite and Gaspeite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thulite and Gaspeite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thulite and Gaspeite Optical Properties during the identification of gemstone. Specific gravity of Thulite is 3.71 whereas that of Gaspeite is 3.71.