Natrolite and Dumortierite Physical Properties

Natrolite

Dumortierite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.20-2.263.26-3.41

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Gemstones (2009)

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

Perfect on {110}

Distinct on {100}, poor on {110}; parting on {001}

1.7 Mohs Hardness

5-5.57-8.5

2 10

1.8 Chemical Composition

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

AlAl₆O₃BSi₃O₁₈

Natrolite and Dumortierite Chemical Formula

While comparing Natrolite and Dumortierite 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 Dumortierite 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 Dumortierite- AlAl₆O₃BSi₃O₁₈

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Natrolite and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Natrolite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.