Rossmanite and Emerald Physical Properties

Rossmanite

Emerald

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

32.67-2.78

1 7.18

1.5 Fracture

Brittle, Metallic

Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

None

Imperfect on the [0001]

1.7 Mohs Hardness

Not Available7.5-8

2 10

1.8 Chemical Composition

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

Be₃Al₂SiO₆

Rossmanite and Emerald Chemical Formula

While comparing Rossmanite and Emerald 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 Emerald 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 Emerald- Be₃Al₂SiO₆

Compare Gems Found in America

Rossmanite Vs Serandite

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Rossmanite Vs Serpentine

Rossmanite and Emerald Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rossmanite and Emerald Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rossmanite and Emerald Optical Properties during the identification of gemstone. Specific gravity of Rossmanite is 2.67-2.78 whereas that of Emerald is 2.67-2.78.