Stibiotantalite and Gypsum Physical Properties

Stibiotantalite

Gypsum

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1 Physical Properties

1.1 Tenacity

Not Available

Flexible

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available2.20-2.40

1 7.18

2.5 Fracture

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

Conchoidal, Splintery, Fibrous, UnevenArthur Thomas, Gemstones (2009)

2.6 Cleavage

{???} Perfect

Perfect on {010}, distinct on {100}

2.7 Mohs Hardness

5.5-62

2 10

2.11 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

Stibiotantalite and Gypsum Chemical Formula

While comparing Stibiotantalite and Gypsum 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 Gypsum chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Gypsum- CaSO 4 -2(H 2O)Arthur Thomas , Gemstones (2009)

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Stibiotantalite and Gypsum Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Gypsum Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Gypsum Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2.20-2.40 whereas that of Gypsum is 2.20-2.40.