Rossmanite and Labradorite Physical Properties

Rossmanite

Labradorite

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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

32.69-2.72

1 7.18

1.5 Fracture

Brittle, Metallic

Uneven, Conchoidal, Gems, Sixth Edition (2006)

1.6 Cleavage

None

Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}

1.7 Mohs Hardness

Not Available6-6.5

2 10

1.8 Chemical Composition

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

(Na,Ca)_1-2Si_3-2O₈

Rossmanite and Labradorite Chemical Formula

While comparing Rossmanite and Labradorite 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 Labradorite chemical formula.

Chemical formula of Rossmanite- ◻(LiAl 2)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈

Compare Gems Found in America

Rossmanite Vs Serandite

Rossmanite Vs Serpentine

Rossmanite Vs Scolecite

Rossmanite and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rossmanite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.