hardness of iron ore lumps in genrol
Primitive Skills Making Steel From Iron Ore Know More. Jan 14 2020 0183 32 This ore is distinguished by the naked eye has many colors in a lump but is characterized by two colors black and brown dark brown brown kidney shaped dense or porous like iron residue This ore has an iron composition of 53 to 56 hardness 1 4 density 3 4 40 After some time of searching and