Natrolite and Herderite Physical Properties

Natrolite

Herderite

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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

2.20-2.262.90-3.02

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic, Gemstones (2009)

Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle

1.6 Cleavage

Perfect on {110}

Indistinct on {110}

1.7 Mohs Hardness

5-5.55-5.5

2 10

1.8 Chemical Composition

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

CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Natrolite and Herderite Chemical Formula

While comparing Natrolite and Herderite 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 Herderite 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 Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

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Natrolite and Herderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Natrolite and Herderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Natrolite and Herderite Optical Properties during the identification of gemstone. Specific gravity of Natrolite is 2.90-3.02 whereas that of Herderite is 2.90-3.02.