This paper makes some suggestions to Rock and Mineral Analysis(the 4th Edition).Query the Qeqott formula.Make a suggestion on determination of SiO2 by HF and H2SO4-V2O5 other than HF-HCIO4.The main chemical reaction formula for determination of Vanadium by acid pasting and ferrous ammonium sulfate volumetry should be changed.Au adsorbed by activated carbon in dilute hydrochloric acid and dilute aqua regia is Au as simple substance other than AuCl4-.