Topaz and Kornerupine Physical Properties

Topaz

Kornerupine

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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

3.49-3.573.25-3.45

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

[001] Perfect

Good on {110}

1.7 Mohs Hardness

86.5

2 10

1.8 Chemical Composition

Al₂SiO₄(F,OH)₂

Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Topaz and Kornerupine Chemical Formula

While comparing Topaz and Kornerupine 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 Kornerupine chemical formula.

Chemical formula of Topaz- Al₂SiO₄(F,OH)₂
Chemical formula of Kornerupine- Mg 3Al 6(Si,Al,B) 5O 21(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Gems for Sagittarius

Topaz Vs Petoskey Stone

Topaz Vs Pietersite

Topaz Vs Quartz Smoky

Topaz and Kornerupine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Topaz and Kornerupine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Topaz and Kornerupine Optical Properties during the identification of gemstone. Specific gravity of Topaz is 3.25-3.45 whereas that of Kornerupine is 3.25-3.45.