Wulfenite and Astrophyllite Physical Properties

Wulfenite

Astrophyllite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.50-7.003.2-3.4

1 7.18

1.5 Fracture

Irregular, Brittle, Conchoidal

Uneven, Brittle, Metallic

1.6 Cleavage

On {011}, distinct; on {001}, {013}, indistinct

Perfect on [001] imperfect on [100]

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

PbMoO 4Walter Schumann , Gemstones of the world (2001)

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

Wulfenite and Astrophyllite Chemical Formula

While comparing Wulfenite 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 Wulfenite and Astrophyllite chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

Compare Red Gemstones

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Wulfenite Vs Opal Australia

Wulfenite Vs Garnet Malaia

Wulfenite and Astrophyllite Specific Gravity

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