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Grossular
Grossular

Kurnakovite
Kurnakovite



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Grossular
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Kurnakovite

Grossular and Kurnakovite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
Soluble

Durability

-
-

Specific Gravity

3.55-3.731.847-1.852
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Conchoidal

Cleavage

none
Poor to indistinct on {010}

Mohs Hardness

7-7.52-3
2 10
👆🏻

Chemical Composition

Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
Ca3Al3(SiO4)3(OH)

Grossular and Kurnakovite Chemical Formula

While comparing Grossular and Kurnakovite 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 Grossular and Kurnakovite chemical formula.

  • Chemical formula of Grossular- Ca 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  • Chemical formula of Kurnakovite- Ca3Al3(SiO4)3(OH)

Grossular and Kurnakovite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Grossular and Kurnakovite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grossular and Kurnakovite Optical Properties during the identification of gemstone. Specific gravity of Grossular is 1.847-1.852 whereas that of Kurnakovite is 1.847-1.852.