Topaz and Inderite Physical Properties

Topaz

Inderite

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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

3.49-3.571.79

1 7.18

1.5 Fracture

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

Uneven

1.6 Cleavage

[001] Perfect

{110} Good

1.7 Mohs Hardness

82.5

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

MgB 3O 3(OH) 5 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Topaz and Inderite Chemical Formula

While comparing Topaz and Inderite 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 Topaz and Inderite chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Inderite- MgB 3O 3(OH) 5 · 5H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

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Topaz and Inderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Inderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Inderite Optical Properties during the identification of gemstone. Specific gravity of Topaz is 1.79 whereas that of Inderite is 1.79.