Natrolite and Emerald Physical Properties

Natrolite

Emerald

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

Hard

1.4 Specific Gravity

2.20-2.26

2.67-2.78

1.5 Fracture

Uneven, Brittle, Metallic, Gemstones (2009)

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

1.6 Cleavage

Perfect on {110}

Imperfect on the [0001]

1.7 Mohs Hardness

5-5.5

7.5-8

1.8 Chemical Composition

Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Be₃Al₂SiO₆

Natrolite and Emerald Chemical Formula

While comparing Natrolite 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 Natrolite and Emerald chemical formula.

Chemical formula of Natrolite- Na 2[Al 2Si 3O 10] · 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Emerald- Be₃Al₂SiO₆

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Natrolite and Emerald Specific Gravity

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