Clerici solution for the specific gravity determination of small mineral grains

In the identification of minerals, as well as in the determination of their properties, modern methods tend to minimize the amount of material necessary for satisfactory results. In this direction lie the immersion methods of optical investigations and the more recently developed microchemical techniques. Certain cases, however, require the determination of hardness and specific gravity as an adjunct; of these the specific gravity is the more easily and accurately obtained.