As prices may not always be full accurate, you always run the risk of losing profit. Then there are recurring methods of making OSRS money such as farming herbs, picking cactus spines, or buying ore. Continuously doing such methods, while grinding, can be highly-profitable endeavors. ...
In Mineral Resource and Ore Reserve Estimation; The Australasian Institute of Mining and Metallurgy: Melbourne, Australia, 2014; pp. 659–678. 16. François-Bongarçon, D.M.; Gy, P.M. The most common error in applying Gy's formula in the theory of mineral sampling and the history of...