Rubellite and Garnet Physical Properties

Rubellite

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

3.01-3.063.55-4.33

1 7.18

1.5 Fracture

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

Conchoidal, Uneven

1.6 Cleavage

Not Available

Indistinct

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.

Garnet is a series of several different minerals with unique chemical formulas.

Rubellite and Garnet Chemical Formula

While comparing Rubellite and 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 Rubellite and Garnet chemical formula.

Chemical formula of Rubellite- 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 Garnet- Garnet is a series of several different minerals with unique chemical formulas.

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Rubellite and Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rubellite and Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rubellite and Garnet Optical Properties during the identification of gemstone. Specific gravity of Rubellite is 3.55-4.33 whereas that of Garnet is 3.55-4.33.