4. determine a) the content (%) of the element ofinterest contained in the following minerals and b) the total value of a 100,000 short ton ore reserve for each mineral (requires looking up market prices; provide a reference for your market price) assuming a mineral content of 1% for each source: example: a.) research which element is of economic interest and reference slides to calculate content as a percentage b) assume 1% of your tonnage is the mineral listed. look up market price. may need to convert market price units (tons to oz) a. ores: chalcocite (c2s) and cassiterite (sno2)