Adamite and Kutnohorite Physical Properties

Adamite

Kutnohorite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

4.32-4.48

3.12

1.5 Fracture

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

Subconchoidal, Brittle, Conchoidal

1.6 Cleavage

{101}, good; {010}, poor

Perfect on {10 1 1}

1.7 Mohs Hardness

3.5

3-4

1.8 Chemical Composition

Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

Not Available

Adamite and Kutnohorite Chemical Formula

While comparing Adamite and Kutnohorite 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 Adamite and Kutnohorite chemical formula.

Chemical formula of Adamite- Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)

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Adamite and Kutnohorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Adamite and Kutnohorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adamite and Kutnohorite Optical Properties during the identification of gemstone. Specific gravity of Adamite is 3.12 whereas that of Kutnohorite is 3.12.