Mapping mineral deposits is one of the most important objective methods for studying them. This work is devoted to the development of rational mapping methods, treating this issue in a general form. The first reason for this work was the urgent need for a rationally constructed map of the Altai polymetallic deposits. The need for such a map immediately became clear in the first years of research by the Geological Committee in Altai, and at the same time we both undertook work in two directions: a mapping methodology was developed and literary, archival and material unpublished by Altai workers of Geological Comittee an necessary for mapping the Altai deposits, was collected. The result of work in the first direction is this article.
Crystallization of this compound was carried out at a temperature of about +20 ° C from solutions in methyl alcohol, in which it dissolves quite easily even in the cold. When heated, solubility increases 57 crystals were revised. The results of the revision are shown in the table (see article).
