Rubellite and Chrome Pyrope Physical Properties

Rubellite

Chrome Pyrope

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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

3.01-3.063.62-3.80

1 7.18

1.5 Fracture

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

1.6 Cleavage

Not Available

1.7 Mohs Hardness

7-7.57-7.5

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.

Mg 3(Al,Cr) 2(SiO 4) 3Gemdat.org , Management Team (2012)

Rubellite and Chrome Pyrope Chemical Formula

While comparing Rubellite and Chrome Pyrope 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 Chrome Pyrope 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 Chrome Pyrope- Mg 3(Al,Cr) 2(SiO 4) 3Gemdat.org , Management Team (2012)

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Rubellite and Chrome Pyrope Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rubellite and Chrome Pyrope Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rubellite and Chrome Pyrope Optical Properties during the identification of gemstone. Specific gravity of Rubellite is 3.62-3.80 whereas that of Chrome Pyrope is 3.62-3.80.