Adamite and Astrophyllite Physical Properties

Adamite

Astrophyllite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

Brittle

4.32-4.48

Uneven, Subconchoidal, Conchoidal

{101}, good; {010}, poor

3.5

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

3.2-3.4

Uneven

Perfect on [001] imperfect on [100]

(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

Adamite and Astrophyllite Chemical Formula

While comparing Adamite and Astrophyllite 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 Astrophyllite chemical formula.

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Adamite and Astrophyllite Specific Gravity

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