Analcime

Analcime or analcite (from the Greek analkimos - "weak") is a white, grey, or colourless tectosilicate mineral. Analcime consists of hydrated sodium aluminium silicate in cubic crystalline form. Its chemical formula is NaAlSi2O6·H₂O. Minor potassium and calcium substitute for sodium. A silver bearing synthetic variety also exists (Ag-analcite).
See more at Wikipedia.org...

(n.)
A white or flesh-red mineral, of the zeolite family, occurring in isometric crystals. By friction, it acquires a weak electricity; hence its name.
  

General Information:
 Chemical Formula:
NaAlSi2O6·(H2O)
 Composition:
(Molecular Weight = 220.15 gm)
Sodium 10.44 % Na
Aluminum 12.26 % Al
Silicon 25.51 % Si
Hydrogen 0.92 % H 
Oxygen 50.87 % O 
 Empirical Formula:
NaAl(Si2O6)·(H2O)
 Environment:
Occurs frequently in basalts and other basic igneous rocks associated with other zeolites.
 IMA Status:
Approved IMA 1959
 Locality:
Aussig in Bohemial of Czechoslovakia.
 Name Origin:
From the Greek word meaning weak, referring to a weak electrical charge developed on rubbing.
Physical Properties:
 Cleavage:
[001] Indistinct, [010] Indistinct, [100] Indistinct
 Color:
white, grayish white, greenish white, yellowish white, or reddish white.
 Density:
2.3
 Diaphaniety:
Transparent to Subtransparent to translucent
 Habits:
Euhedral Crystals - Occurs as well-formed crystals showing good external form., Granular - Generally occurs as anhedral to subhedral crystals in matrix., Massive - Uniformly indisting uishable crystals forming large masses.
 Hardness:
5 - Apatite
 Luminescence:
Fluorescent.
 Luster:
Vitreous (Glassy)
 Streak:
white
More details...

ANALCIME. ANALCITE

B: (Kimia) analsim
Built to Babylon by Hikmat Gumilar Visit my Website;