# ClassifySTD

StrName: Spinel Pure
Color: #00FF00
KeyElementList: Al,Mg
SubElementList: Ca,S,Mn,Si
Hardness: 1
Density: 1
Electrical_conductivity: 1
Formula: 1
Element: 1
Expression:
Al >= 35 and Mg/(Al + Mg + Ca)>= 0.15 and (Al + Mg)>= 70 and (100*S/(Ca +Al + S))<10 and Mn < 10 and Si < 8 and Ca < 5


