"bauxite"
"beryllium"
"lead"
"chrome"
"diamonds"
"iron"
"naturalgas"
"oil"
"gold"
"kaolin"
"cobalt"
"coal"
"copper"
"lithium"
"magnesium"
"manganese"
"molybdenum"
"nickel"
"phosphate"
"platinum"
"potash"
"rubies"
"silver"
"soda"
"tantalum"
"titanium"
"uranium"
"vanadium"
"tungsten"
"zinc"
"tin"
"salt"