Morganite and Achroite Physical Properties

Morganite

Achroite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.71-2.902.90-3.40

1 7.18

1.5 Fracture

Not Available

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

3,1 basal

Not Available

1.7 Mohs Hardness

7.5-87-7.5

2 10

1.8 Chemical Composition

Be₃Al₂SiO₆

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.

Morganite and Achroite Chemical Formula

While comparing Morganite 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 Morganite and Achroite chemical formula.

Chemical formula of Morganite- Be₃Al₂SiO₆
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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Morganite and Achroite Specific Gravity

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