Assertion: periclase's % mgo | /r/HasProperty | up to 3%
Facets:
Source sentences:
text: A typical range of analysis of one fused grain, obtained by crushing electrically melted, fusion-cast blocks, according to this invention is: 53.0-58.0% MgO, 17-22% Cr 2 O 3 , 5-10% Al 2 O 3 , up to 14% FeO, up to 3% SiO 2 , up to 1% CaO, up to 1% fluorine, up to 2% TiO 2 .