| oxide2oxide {GCDkit} | R Documentation | 
Returns a factor needed to multiply concentrations of an element given as an oxide (in wt %) to a different target oxide (of the same element).
oxide2oxide(formula1, formula2)
| formula1 | character: the oxide which is to be recalculated | 
| formula2 | character: the target oxide | 
A factor for recalculation.
Vojtěch Janoušek, vojtech.janousek@geology.cz
oxide2ppm, ppm2oxide, molecularWeight  
    oxide2oxide("FeO","Fe2O3")
    oxide2oxide("Mn2O3","MnO")