Herderite and Apatite Physical Properties

Herderite

Apatite

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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

2.90-3.02

Subconchoidal, Conchoidal

Indistinct on {110}

5-5.5

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

3.16-3.23

Conchoidal, Uneven, Conchoidal to uneven

[0001] indistinct, [1010] indistinct

Ca 5(PO 4) 3(F,OH,Cl)Walter Schumann , Gemstones of the world (2001) More from other references

Herderite and Apatite Chemical Formula

While comparing Herderite and Apatite 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 Herderite and Apatite chemical formula.

Compare Colorless Gems

Herderite Vs Orthoclase

Herderite Vs Pectolite

Herderite Vs Phenakite

Herderite and Apatite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Herderite and Apatite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite Vs Apatite during the identification of gemstone. Specific gravity of Herderite is whereas that of Apatite is .