Sapphire and Wulfenite Physical Properties

Sapphire

Wulfenite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

insoluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.95-4.036.50-7.00

1 7.18

1.5 Fracture

Uneven, Uneven, Gems, Sixth Edition (2006)

Irregular, Brittle, Conchoidal

1.6 Cleavage

None, but may exhibit parting

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

1.7 Mohs Hardness

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Sapphire and Wulfenite Chemical Formula

While comparing Sapphire and Wulfenite 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 Sapphire and Wulfenite chemical formula.

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

Compare Birthstones » More

Sapphire Vs Ruby

Sapphire Vs Opal

Sapphire Vs Emerald

» More

More Compare Birthstones

Sapphire and Wulfenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sapphire and Wulfenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sapphire and Wulfenite Optical Properties during the identification of gemstone. Specific gravity of Sapphire is 6.50-7.00 whereas that of Wulfenite is 6.50-7.00.