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Annabergite
Annabergite

Brookite
Brookite



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Annabergite
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Brookite

Annabergite and Brookite Physical Properties

Physical Properties

Tenacity

Sectile
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

3.073.87-4.14
1 7.18
👆🏻

Fracture

-
Subconchoidal, Conchoidal

Cleavage

Perfect on {010}, indistinct on {100} and {102}
Poor on {120}, in traces on {001}

Mohs Hardness

25.5-6
2 10
👆🏻

Chemical Composition

Ni3(AsO4)2•8(H2O)
TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Annabergite and Brookite Chemical Formula

While comparing Annabergite and Brookite 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 Annabergite and Brookite chemical formula.

  • Chemical formula of Annabergite- Ni3(AsO4)2•8(H2O)
  • Chemical formula of Brookite- TiO 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Annabergite and Brookite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Annabergite and Brookite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Annabergite and Brookite Optical Properties during the identification of gemstone. Specific gravity of Annabergite is 3.87-4.14 whereas that of Brookite is 3.87-4.14.