Stibiotantalite and Herderite Physical Properties

Stibiotantalite

Herderite

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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 Available2.90-3.02

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{???} Perfect

Indistinct on {110}

1.7 Mohs Hardness

5.5-65-5.5

2 10

1.8 Chemical Composition

SbTaO 4Ulrich Henn and Claudio C.

CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Stibiotantalite and Herderite Chemical Formula

While comparing Stibiotantalite and Herderite 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 Herderite chemical formula.

Chemical formula of Stibiotantalite- SbTaO 4Ulrich Henn and Claudio C.
Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

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Stibiotantalite and Herderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Stibiotantalite and Herderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Stibiotantalite and Herderite Optical Properties during the identification of gemstone. Specific gravity of Stibiotantalite is 2.90-3.02 whereas that of Herderite is 2.90-3.02.