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Brucite
Brucite

Smaragdite
Smaragdite



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Brucite
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Smaragdite

Brucite and Smaragdite Physical Properties

Physical Properties

Tenacity

Sectile
-

Solubility

-
-

Durability

-
-

Specific Gravity

2.393.24-3.50
1 7.18
👆🏻

Fracture

Irregular
-

Cleavage

Perfect on {0001}
None

Mohs Hardness

2.55.5
2 10
👆🏻

Chemical Composition

Mg(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
NaCa2(Al,Fe)3Si6O18(OH)4

Brucite and Smaragdite Chemical Formula

While comparing Brucite and Smaragdite 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 Smaragdite chemical formula.

  • Chemical formula of Brucite- Mg(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006)
  • Chemical formula of Smaragdite- NaCa2(Al,Fe)3Si6O18(OH)4

Brucite and Smaragdite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Brucite and Smaragdite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Brucite and Smaragdite Optical Properties during the identification of gemstone. Specific gravity of Brucite is 3.24-3.50 whereas that of Smaragdite is 3.24-3.50.