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Howlite
Howlite

Wulfenite
Wulfenite



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Howlite
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Wulfenite

Howlite and Wulfenite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.45-2.58
Conchoidal
None
3-3.5
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
Brittle
-
-
6.50-7.00
Irregular, Conchoidal
On {011}, distinct; on {001}, {013}, indistinct
3
PbMoO 4Walter Schumann , Gemstones of the world (2001)

Howlite and Wulfenite Chemical Formula

While comparing Howlite 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 Howlite and Wulfenite chemical formula.

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Howlite and Wulfenite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Howlite and Wulfenite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite Vs Wulfenite during the identification of gemstone. Specific gravity of Howlite is whereas that of Wulfenite is .