Ruby and Natrolite Physical Properties

Ruby

Natrolite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.97-4.052.20-2.26

1 7.18

1.5 Fracture

Conchoidal

Uneven, Brittle, Metallic, Gemstones (2009)

1.6 Cleavage

No true cleavage

Perfect on {110}

1.7 Mohs Hardness

95-5.5

2 10

1.8 Chemical Composition

Al ₂ O ₃

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

Ruby and Natrolite Chemical Formula

While comparing Ruby 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 Ruby and Natrolite chemical formula.

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

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Ruby and Natrolite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ruby and Natrolite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ruby and Natrolite Optical Properties during the identification of gemstone. Specific gravity of Ruby is 2.20-2.26 whereas that of Natrolite is 2.20-2.26.