Stibiotantalite and Holmquistite Physical Properties

Stibiotantalite

Holmquistite

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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

Not Available2.95-3.13

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{???} Perfect

{210} Perfect

1.7 Mohs Hardness

5.5-65-6

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

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

Stibiotantalite and Holmquistite Chemical Formula

While comparing Stibiotantalite and Holmquistite 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 Stibiotantalite and Holmquistite chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Holmquistite- Li 2[(Mg,Fe2+ ) 3Al 2]Si 8O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)

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Stibiotantalite and Holmquistite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Holmquistite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Holmquistite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2.95-3.13 whereas that of Holmquistite is 2.95-3.13.