Gahnospinel and Andradite Garnet Physical Properties

Gahnospinel

Andradite 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

3.65-4.553.8-3.9

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009)

Not Available

1.6 Cleavage

None, but may exhibit slight parting

None

1.7 Mohs Hardness

7.5-86.5-7.5

2 10

1.8 Chemical Composition

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Ca₃Fe³⁺₂Si₃O₁₂

Gahnospinel and Andradite Garnet Chemical Formula

While comparing Gahnospinel and Andradite 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 Gahnospinel and Andradite Garnet chemical formula.

Chemical formula of Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)
Chemical formula of Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

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Gahnospinel and Andradite Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gahnospinel and Andradite Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gahnospinel and Andradite Garnet Optical Properties during the identification of gemstone. Specific gravity of Gahnospinel is 3.8-3.9 whereas that of Andradite Garnet is 3.8-3.9.