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Achroite
Achroite

Shigaite
Shigaite



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Achroite
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Shigaite

Achroite and Shigaite Physical Properties

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1 Physical Properties
1.1 Tenacity
Not Available
Moderately flexible
1.2 Solubility
Not Available
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.90-3.40
2.32
1.5 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Flexible Flexible fragments.
1.6 Cleavage
Not Available
Perfect on {0001}
1.7 Mohs Hardness
7-7.5
2
1.8 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.
Not Available

Achroite and Shigaite Chemical Formula

While comparing Achroite and Shigaite 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 Shigaite chemical formula.

  • Chemical formula of Achroite- 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.
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Achroite and Shigaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Achroite and Shigaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Achroite and Shigaite Optical Properties during the identification of gemstone. Specific gravity of Achroite is 2.32 whereas that of Shigaite is 2.32.

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