Warwickite n. : A dark brown or black mineral, occurring in prismatic crystals imbedded in limestone near Warwick, New York. It consists of the borate and titanate of magnesia and iron.

Example:


Taxonomy
Warwickite, free encyclopedia, search, webmineral, mindat, formula, O3, Fe3, BO3, prismatic, vitreous, in Siberia, Mineralogy, Titanium minerals, Personal tools, Interaction, Toolbox, borate mineral.

Defination from the web:
/Warwickite.shtml Webmineral ^ http://www.mindat.org/min-4245.html Mindat ... Heavy mineral sands (various) · Sabinaite (carbonate) · Warwickite (borate) · Zimbabweite (arsenite) This article about a specific mineral or mineraloid is a stub. ...