Marcasite and Natrolite Physical Properties

Marcasite

Natrolite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

4.80-4.902.20-2.26

1 7.18

1.5 Fracture

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Uneven

Uneven, Brittle, Metallic, Gemstones (2009)

1.6 Cleavage

{010} Indistinct

Perfect on {110}

1.7 Mohs Hardness

6-6.55-5.5

2 10

1.8 Chemical Composition

FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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

Marcasite and Natrolite Chemical Formula

While comparing Marcasite 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 Marcasite and Natrolite chemical formula.

Chemical formula of Marcasite- FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
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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Marcasite and Natrolite Specific Gravity

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