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Howlite
Howlite
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Diaspore
Diaspore
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Howlite
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Diaspore

Howlite and Diaspore 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
 
Very brittle
insoluble
-
3.30-3.40
Conchoidal
{010} perfect, {110} distinct, {100} in traces
6.5-7
AlO(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Howlite and Diaspore Chemical Formula

While comparing Howlite and Diaspore 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 Diaspore chemical formula.

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Howlite and Diaspore Specific Gravity

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