Powellite and Astrophyllite Physical Properties

Powellite

Astrophyllite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.233.2-3.4

1 7.18

1.5 Fracture

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

Uneven, Brittle, Metallic

1.6 Cleavage

{111} Distinct

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

3.5-43

2 10

1.8 Chemical Composition

CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)

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

Powellite and Astrophyllite Chemical Formula

While comparing Powellite 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 Powellite and Astrophyllite chemical formula.

Chemical formula of Powellite- CaMoO 4Michael OâDonoghue , Gems, Sixth Edition (2006)
Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

Compare Blue Gemstones

Powellite Vs Rubellite

Powellite Vs Sanidine

Powellite Vs Rock Crystal

Powellite and Astrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Powellite and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Powellite and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Powellite is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.