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Datolite
Datolite

Herderite
Herderite



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Datolite
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Herderite

Datolite and Herderite Physical Properties

Physical Properties

Tenacity

Brittle
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.90-3.002.90-3.02
1 7.18
👆🏻

Fracture

Conchoidal, Uneven
Subconchoidal, Conchoidal

Cleavage

None
Indistinct on {110}

Mohs Hardness

5-5.55-5.5
2 10
👆🏻

Chemical Composition

CaBSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Datolite and Herderite Chemical Formula

While comparing Datolite 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 Datolite and Herderite chemical formula.

  • Chemical formula of Datolite- CaBSiO 4(OH)Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
  • Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Datolite and Herderite Specific Gravity

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