Verdite and Herderite Physical Properties

Verdite

Herderite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.80-3.02.90-3.02

1 7.18

1.5 Fracture

Not Available

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

1.6 Cleavage

{110} Good

Indistinct on {110}

1.7 Mohs Hardness

35-5.5

2 10

1.8 Chemical Composition

NaFeS2•2(H2O)

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

Verdite and Herderite Chemical Formula

While comparing Verdite 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 Verdite and Herderite chemical formula.

Chemical formula of Verdite- NaFeS2•2(H2O)
Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

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Verdite and Herderite Specific Gravity

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