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(n.)
The mineral chondrodite.
  

(n.)
A white, pearly mineral, occurring thin and foliated, like talc, and also fibrous; a native magnesium hydrate.
  

General Information:
 Chemical Formula:
Mg(OH)2
 Composition:
(Molecular Weight = 58.32 gm)
Magnesium 41.68 % Mg
Hydrogen 3.46 % H 
Oxygen 54.87 % O 
 Empirical Formula:
Mg(OH)2
 Environment:
It occurs in serpentine, in chlorite or dolomitic schists, or in crystalline limestones as an alteration product of periclase.
 Locality:
New Jersey, USA serpentine. Asbestos mines of Asbestos and Black Lake in Quebec, Canada. crystalline limestones at Crestmore, California, USA.
 Name Origin:
Named after the American mineralogist, A. Bruce (1777-1818).
Physical Properties:
 Cleavage:
[0001] Perfect
 Color:
blue, gray, gray blue, yellow, or white.
 Density:
2.39 - 2.4, Average = 2.39
 Diaphaniety:
Transparent
 Habits:
Massive - Lamellar - Distinctly foliated fine-grained forms., Fibrous - Crystals made up of fibers., Massive - Uniformly indistinguishable crystals forming large masses.
 Hardness:
2.5-3 - Finger Nail-Calcite
 Luminescence:
None.
 Luster:
Vitreous - Pearly
 Streak:
white
More details...

brucite

• danh từ
  • (khoáng chất) bruxit

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B: (Kimia) brusit

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