Natrolite and Friedelite Physical Properties

Natrolite

Friedelite

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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

2.20-2.263.06-3.19

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Gemstones (2009)

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

1.6 Cleavage

Perfect on {110}

{010} Perfect

1.7 Mohs Hardness

5-5.54-5

2 10

1.8 Chemical Composition

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

Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

Natrolite and Friedelite Chemical Formula

While comparing Natrolite and Friedelite 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 Friedelite 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 Friedelite- Mn 8Si 6O 15(OH,Cl) 10Ulrich Henn and Claudio C.

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Natrolite and Friedelite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Natrolite and Friedelite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Friedelite Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 3.06-3.19 whereas that of Friedelite is 3.06-3.19.