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Erythrite
Erythrite

Howlite
Howlite



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Erythrite
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Howlite

Erythrite and Howlite Physical Properties

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Sectile
-
-
3.06
Sectile
Perfect on {010}; poor on {100} and { 1 02}.
-9999
Co3(AsO4)2•8(H2O)
 
-
-
-
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

Erythrite and Howlite Chemical Formula

While comparing Erythrite and Howlite 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 Erythrite and Howlite chemical formula.

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Erythrite and Howlite Specific Gravity

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