Carbonates[25 from 25] siderite sharpen aggregate yellow with tarnish siderite in emptinesses of yellow, brown limonite.    
 
            
                     
            
            The name, a brief visual description:
            siderite
            sharpen aggregate yellow with tarnish siderite in emptinesses of yellow, brown limonite.
            Sample size:
            Ore. 12*8*2 cm. 0,280  kg.
            Place of sampling:
            the field Krivorojskoe, Ukraine
                    