Emerald and Natrolite Physical Properties
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Hard
Not Available
Specific Gravity
2.67-2.78
2.20-2.26
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
Uneven, Brittle, Metallic, Gemstones (2009)
Cleavage
Imperfect on the [0001]
Perfect on {110}
Mohs Hardness
7.5-8
5-5.5
Chemical Composition
Be3Al2SiO6
Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Emerald and Natrolite Chemical Formula
While comparing Emerald and Natrolite 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 Emerald and Natrolite chemical formula.
- Chemical formula of Emerald- Be3Al2SiO6
- Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Emerald and Natrolite Specific Gravity
Another important criteria for qualitative analysis of gemstones is Emerald and Natrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Emerald and Natrolite Optical Properties during the identification of gemstone. Specific gravity of Emerald is 2.20-2.26 whereas that of Natrolite is 2.20-2.26.
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