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Brucite
Brucite

Piemontite
Piemontite



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Brucite
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Piemontite

Brucite and Piemontite Physical Properties

Physical Properties

Tenacity

Sectile
Brittle

Solubility

-
-

Durability

-
-

Specific Gravity

2.39-9999
1 7.18
👆🏻

Fracture

Irregular
Uneven, Splintery

Cleavage

Perfect on {0001}
[001] good, [100] distinct

Mohs Hardness

2.56-6.5
2 10
👆🏻

Chemical Composition

Mg(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
Ca2Al3(SiO4)(Si2O7)O(OH)

Brucite and Piemontite Chemical Formula

While comparing Brucite and Piemontite 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 Brucite and Piemontite chemical formula.

  • Chemical formula of Brucite- Mg(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Piemontite- Ca2Al3(SiO4)(Si2O7)O(OH)

Brucite and Piemontite Specific Gravity

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