Achroite and Grossular Garnet Physical Properties

Achroite

Grossular Garnet

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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

2.90-3.403.6

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Not Available

None

1.7 Mohs Hardness

7-7.56.5-7.5

2 10

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.

Ca₃Al₂Si₃O₁₂

Achroite and Grossular Garnet Chemical Formula

While comparing Achroite and Grossular Garnet 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 Grossular Garnet 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.
Chemical formula of Grossular Garnet- Ca₃Al₂Si₃O₁₂

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Achroite and Grossular Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Achroite and Grossular Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Achroite and Grossular Garnet Optical Properties during the identification of gemstone. Specific gravity of Achroite is 3.6 whereas that of Grossular Garnet is 3.6.