Holmquistite and Tanzanite Physical Properties

Holmquistite

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

2.95-3.133.35

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

{210} Perfect

Perfect {010}, imperfect {100}

1.7 Mohs Hardness

5-66.5-7

2 10

1.8 Chemical Composition

Li 2[(Mg,Fe2+ ) 3Al 2]Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

Ca₂Al₃(SiO₄)₃(OH)

Holmquistite and Tanzanite Chemical Formula

While comparing Holmquistite 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 Holmquistite and Tanzanite chemical formula.

Chemical formula of Holmquistite- Li 2[(Mg,Fe2+ ) 3Al 2]Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Tanzanite- Ca₂Al₃(SiO₄)₃(OH)

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Holmquistite and Tanzanite Specific Gravity

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