1) Sodium mineral
Found on
https://www.crosswordclues.com/clue/sauconite
Sauconite is a complex phyllosilicate mineral of the smectite clay group, formula Na0.3Zn3(SiAl)4O10(OH)2·4H2O. It forms soft earthy bluish white to red-brown monoclinic crystals typically massive to micaceous in habit. It has a Mohs hardness of 1 to 2 and a specific gravity of 2.45. Optically it is biaxial positive with refractive index values o...
Found on
http://en.wikipedia.org/wiki/Sauconite
(from the article `clay mineral`) ...in the smectite minerals of this series. Besides magnesium and ferrous iron, zinc, cobalt, and manganese are known to be dominant cations in the ...
Found on
http://www.britannica.com/eb/a-z/s/35
No exact match found.
