Rossmanite and Riebeckite Physical Properties

Rossmanite

Riebeckite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

33.28-3.44

1 7.18

1.5 Fracture

Brittle, Metallic

Uneven, Splintery, Brittle

1.6 Cleavage

None

Perfect on {110}, intersecting at 56° and 124°; partings on {100} and {010}

1.7 Mohs Hardness

Not Available5.0-6.0

2 10

1.8 Chemical Composition

◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Not Available

Rossmanite and Riebeckite Chemical Formula

While comparing Rossmanite and Riebeckite 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 Rossmanite and Riebeckite chemical formula.

Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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Rossmanite and Riebeckite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rossmanite and Riebeckite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Riebeckite Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 3.28-3.44 whereas that of Riebeckite is 3.28-3.44.