Tanzanite and Powellite Physical Properties

Tanzanite

Powellite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Hard

Not Available

1.4 Specific Gravity

3.35

4.23

1.5 Fracture

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

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.6 Cleavage

Perfect {010}, imperfect {100}

{111} Distinct

1.7 Mohs Hardness

6.5-7

3.5-4

1.8 Chemical Composition

Ca₂Al₃(SiO₄)₃(OH)

CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Tanzanite and Powellite Chemical Formula

While comparing Tanzanite and Powellite 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 Powellite chemical formula.

Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)
Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Semi Precious Gemstones

Tanzanite Vs Alexandrite

Tanzanite Vs Beryl

Tanzanite Vs Amethyst

Tanzanite and Powellite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Tanzanite and Powellite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Tanzanite and Powellite Optical Properties during the identification of gemstone. Specific gravity of Tanzanite is 4.23 whereas that of Powellite is 4.23.

Semi Precious

Tourmaline

Turquoise

Peridot

Lehsunia

Alexandrite

Amethyst