Wulfenite and Obsidian Physical Properties

Wulfenite

Obsidian

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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

6.50-7.002.35-2.60

1 7.18

1.5 Fracture

Irregular, Brittle, Conchoidal

Conchoidal, ConchoidalWalter Schumann, Conchoidal

1.6 Cleavage

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

Not Available

1.7 Mohs Hardness

35-5.5

2 10

1.8 Chemical Composition

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

Not Available

Wulfenite and Obsidian Chemical Formula

While comparing Wulfenite and Obsidian 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 Obsidian chemical formula.

Chemical formula of Wulfenite- PbMoO 4Walter Schumann , Gemstones of the world (2001)

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Wulfenite and Obsidian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Wulfenite and Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Wulfenite and Obsidian Optical Properties during the identification of gemstone. Specific gravity of Wulfenite is 2.35-2.60 whereas that of Obsidian is 2.35-2.60.