Adamite and Shigaite Physical Properties

Adamite

Shigaite

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1 Physical Properties

1.1 Tenacity

Brittle

Moderately ﬂexible

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.32-4.48

2.32

1.5 Fracture

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

Flexible Flexible fragments.

1.6 Cleavage

{101}, good; {010}, poor

Perfect on {0001}

1.7 Mohs Hardness

3.5

1.8 Chemical Composition

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

Not Available

Adamite and Shigaite Chemical Formula

While comparing Adamite and Shigaite 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 Shigaite chemical formula.

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

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Adamite and Shigaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Adamite and Shigaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Adamite and Shigaite Optical Properties during the identification of gemstone. Specific gravity of Adamite is 2.32 whereas that of Shigaite is 2.32.