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Achroite and Periclase Physical Properties


Periclase and Achroite Physical Properties


Physical Properties

Tenacity
Not Available   
Brittle   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.90-3.40   
3.7-3.9   

Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)   
Conchoidal, Brittle   

Cleavage
Not Available   
{001} perfect; {111} imperfect, may exhibit parting on , {011}   

Mohs Hardness
7-7.5   
5.5-6   

Chemical Composition
Na(Li 1.5Al 1.5)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012) Formula given for elbaite.   
MgOMichael O’Donoghue , Gems, Sixth Edition (2006)   

Optical Properties >>
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Achroite and Periclase Chemical Formula

While comparing Achroite and Periclase 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 Achroite and Periclase chemical formula.

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Achroite and Periclase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Achroite and Periclase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Achroite and Periclase Optical Properties during the identification of gemstone. Specific gravity of Achroite is 3.7-3.9 whereas that of Periclase is 3.7-3.9.

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