1. Basic features of genetic types of ruby deposits: magmatic, hydrothermal-metasomatic, metamorphogene and placer types.
2. Physical both chemical properties of formation and characteristic inclusions in each genetic type of ruby deposits.
3. Revealing of characteristic inclusions by gemmological methods (without stone destruction) for identification of genetic type of ruby deposit and also steady associations of the mineral inclusions allowing with accuracy to establish a ruby deposit.