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Taaffeite
Taaffeite

Herderite
Herderite



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Taaffeite
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Herderite

Taaffeite and Herderite Physical Properties

Physical Properties

Tenacity

-
-

Solubility

-
-

Durability

-
-

Specific Gravity

3.60-3.612.90-3.02
1 7.18
👆🏻

Fracture

Conchoidal
Subconchoidal, Conchoidal

Cleavage

Imperfect/fair/absent
Indistinct on {110}

Mohs Hardness

8-8.55-5.5
2 10
👆🏻

Chemical Composition

Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Taaffeite and Herderite Chemical Formula

While comparing Taaffeite 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 Taaffeite and Herderite chemical formula.

  • Chemical formula of Taaffeite- Mg 3Al 8BeO 16Walter Schumann , Gemstones of the world (2001) More from other references
  • Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Taaffeite and Herderite Specific Gravity

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