MINERALS Ashing A. Dry Ashing 1. 550oC until light-gray ash or to constant wt. 2. Cool in dessicator 3. Weigh soon after reaching room temperatureMINERALS Ashing A. Dry Ashing 1. 550oC until light-gray ash or to constant wt. 2. Cool in dessicator 3. Weigh soon after reaching room temperature