Hessonite and Tanzanite Physical Properties

Hessonite

Tanzanite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

3.55-3.733.35

1 7.18

1.5 Fracture

Uneven

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

1.6 Cleavage

Not Available

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

7-7.56.5-7

2 10

1.8 Chemical Composition

Not Available

Ca₂Al₃(SiO₄)₃(OH)

Hessonite and Tanzanite Chemical Formula

While comparing Hessonite and Tanzanite 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 Hessonite and Tanzanite chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

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Hessonite and Tanzanite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Hessonite and Tanzanite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Hessonite and Tanzanite Optical Properties during the identification of gemstone. Specific gravity of Hessonite is 3.35 whereas that of Tanzanite is 3.35.