Tanzanite and Gaspeite Physical Properties

Tanzanite

Gaspeite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

HCl soluble

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

3.353.71

1 7.18

1.5 Fracture

Uneven, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

Uneven

1.6 Cleavage

Perfect {010}, imperfect {100}

{10 1 1} Good

1.7 Mohs Hardness

6.5-74.5-5

2 10

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

(Ni,Mg,Fe++)CO3

Tanzanite and Gaspeite Chemical Formula

While comparing Tanzanite 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 Tanzanite and Gaspeite chemical formula.

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

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Tanzanite and Gaspeite Specific Gravity

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