Stibiotantalite and Oligoclase Physical Properties

Stibiotantalite

Oligoclase

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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 Available2.62-2.67

1 7.18

1.5 Fracture

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

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006), Uneven

1.6 Cleavage

{???} Perfect

From the Greek, oligos and kasein, little cleavage.

1.7 Mohs Hardness

5.5-66-6.5

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

Stibiotantalite and Oligoclase Chemical Formula

While comparing Stibiotantalite and Oligoclase 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 Oligoclase chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Oligoclase- Na(90-70%)Ca(10-30%)(Al,Si)AlSi 2O 8Michael OâDonoghue , Gems, Sixth Edition (2006)

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Stibiotantalite and Oligoclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Oligoclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Oligoclase Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2.62-2.67 whereas that of Oligoclase is 2.62-2.67.