Ceylonite and Herderite Physical Properties

Ceylonite

Herderite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

none

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.63-3.92.90-3.02

1 7.18

1.5 Fracture

Conchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009)

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

1.6 Cleavage

Indistinct

Indistinct on {110}

1.7 Mohs Hardness

7.5-85-5.5

2 10

1.8 Chemical Composition

(Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references

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

Ceylonite and Herderite Chemical Formula

While comparing Ceylonite 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 Ceylonite and Herderite chemical formula.

Chemical formula of Ceylonite- (Mg,Fe2+ )Al 2O 4Gemdat.org , Management Team (2012) More from other references
Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

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Ceylonite and Herderite Specific Gravity

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