( n. )
A mineral of pale steel-gray color and metallic luster, occurring in isometric crystals, and also massive. It is a sulphide of cobalt containing some nickel or copper.
( n. )
A mineral of pale steel-gray color and metallic luster, occurring in isometric crystals, and also massive. It is a sulphide of cobalt containing some nickel or copper.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012