Holmquistite and Thulite Physical Properties

Holmquistite

Thulite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.95-3.133.1

1 7.18

1.5 Fracture

Not Available

Uneven, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{210} Perfect

Perfect {010} imperfect {100}

1.7 Mohs Hardness

5-66-7

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 Thulite Chemical Formula

While comparing Holmquistite and Thulite 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 Thulite 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 Thulite- Ca₂Al₃(SiO₄)₃(OH)

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Holmquistite and Thulite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Holmquistite and Thulite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Holmquistite and Thulite Optical Properties during the identification of gemstone. Specific gravity of Holmquistite is 3.1 whereas that of Thulite is 3.1.