000			003420000a22001330004500
245			_aStones and minerals : minerals. precious stones, rocks, ores
100			_aSchumann, Walter
260			_aLondon _bLutterworth _c1974
300			_a225p. : ill.
020			_a0718820118
080			_a549.091(083) _bS4
041			_aEN
942			_cBK
999			_c101867 _d101867