Marchnad Heddiw

35-40 crynodiad molybdenwm 4280-4310, 4310-4340 o 40-45, 4340-4370 o 45-50, 4370-4400 o 50-55, a 4400-4430 o fwy na 55; Ocsid molybdenwm cemegol 4380-4410, ocsid molybdenwm metelegol 4420-4450 a ocsid molybdenwm hydawdd iawn 4450-4480.