Stibiotantalite and Andradite Physical Properties

Stibiotantalite

Andradite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

Not Available3.70-4.10

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{???} Perfect

none

1.7 Mohs Hardness

5.5-66.5-7

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Stibiotantalite and Andradite Chemical Formula

While comparing Stibiotantalite and Andradite 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 Andradite chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Andradite- Ca 3Fe 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

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Stibiotantalite and Andradite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Andradite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Andradite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 3.70-4.10 whereas that of Andradite is 3.70-4.10.