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Erythrite
Erythrite

Ulexite
Ulexite



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Erythrite
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Ulexite

Erythrite and Ulexite 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)
 
-
-
-
1.65-1.99
Uneven
{010} Perfect, {110} Perfect
2-2.5
NaCaB 5O 6(OH) 6 · 5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006)

Erythrite and Ulexite Chemical Formula

While comparing Erythrite and Ulexite 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 Ulexite chemical formula.

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Erythrite and Ulexite Specific Gravity

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