Rossmanite and Sunstone Physical Properties

Rossmanite

Sunstone

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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

32.62-2.65

1 7.18

1.5 Fracture

Brittle, Metallic

Gemstones of the world (2001)

1.6 Cleavage

None

001

1.7 Mohs Hardness

Not Available6

2 10

1.8 Chemical Composition

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

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Rossmanite and Sunstone Chemical Formula

While comparing Rossmanite and Sunstone 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 Sunstone 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 Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

Compare Gems Found in America

Rossmanite Vs Serpentine

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Rossmanite and Sunstone Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rossmanite and Sunstone Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Sunstone Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 2.62-2.65 whereas that of Sunstone is 2.62-2.65.