USGS MRERP G09AC0037 Final Technical Report Mineral .
Dec 12, 2012 . particularly the rates of dissolution of scheelite (CaWO4) in .. high temperature quartz veins, it may be found with wolframite, cassiterite, topaz, Teflon tube connected to the regulator of the argon tank on one end, . rate may requires a high frequency of sampling in the initial phases of the experiment. A.