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Dolomite
Dolomite

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Achroite



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Dolomite
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Dolomite and Achroite Physical Properties

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1 Physical Properties
1.1 Tenacity
Brittle
Not Available
1.2 Solubility
Poorly soluble in dilute HCl
Not Available
1.3 Durability
Not Available
Not Available
1.4 Specific Gravity
2.80-2.95
2.90-3.40
1.5 Fracture
Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
1.6 Cleavage
Perfect on {10 1 1}, rhombohedral cleavage
Not Available
1.7 Mohs Hardness
3.5-4
7-7.5
1.8 Chemical Composition
CaMg(CO 3) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
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.

Dolomite and Achroite Chemical Formula

While comparing Dolomite and Achroite 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 Dolomite and Achroite chemical formula.

  • Chemical formula of Dolomite- CaMg(CO 3) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • 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.

Dolomite and Achroite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dolomite and Achroite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dolomite and Achroite Optical Properties during the identification of gemstone. Specific gravity of Dolomite is 2.90-3.40 whereas that of Achroite is 2.90-3.40.