Dolomite and Tanzanite Physical Properties

Dolomite

Tanzanite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Poorly soluble in dilute HCl

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

2.80-2.953.35

1 7.18

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

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

1.6 Cleavage

Perfect on {10 1 1}, rhombohedral cleavage

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

3.5-46.5-7

2 10

1.8 Chemical Composition

CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Ca₂Al₃(SiO₄)₃(OH)

Dolomite and Tanzanite Chemical Formula

While comparing Dolomite 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 Dolomite and Tanzanite chemical formula.

Chemical formula of Dolomite- CaMg(CO 3) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

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Dolomite and Tanzanite Specific Gravity

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