Wulfenite and Ruby Physical Properties

Wulfenite

Ruby

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

6.50-7.003.97-4.05

1 7.18

1.5 Fracture

Irregular, Brittle, Conchoidal

Conchoidal

1.6 Cleavage

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

No true cleavage

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

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

Al ₂ O ₃

Wulfenite and Ruby Chemical Formula

While comparing Wulfenite and Ruby 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 Ruby chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)
Chemical formula of Ruby- Al ₂ O ₃

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Wulfenite and Ruby Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wulfenite and Ruby Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wulfenite and Ruby Optical Properties during the identification of gemstone. Specific gravity of Wulfenite is 3.97-4.05 whereas that of Ruby is 3.97-4.05.