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Grandidierite
Grandidierite

Adamite
Adamite



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Grandidierite
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Adamite

Grandidierite and Adamite Physical Properties

1 Physical Properties
1.1 Tenacity
Not Available
Brittle
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.85-3.004.32-4.48
Amber
1 7.18
1.5 Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
1.6 Cleavage
Perfect
{101}, good; {010}, poor
1.7 Mohs Hardness
7.53.5
Amber
2 10
1.8 Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
Zn 2(AsO 4)(OH)Michael O’Donoghue , Gems, Sixth edition (2006)

Grandidierite and Adamite Chemical Formula

While comparing Grandidierite and Adamite 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 Grandidierite and Adamite chemical formula.

  • Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
  • Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael O’Donoghue , Gems, Sixth edition (2006)

Grandidierite and Adamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Grandidierite and Adamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Grandidierite and Adamite Optical Properties during the identification of gemstone. Specific gravity of Grandidierite is 4.32-4.48 whereas that of Adamite is 4.32-4.48.