Frustumation (fragmentation, lumpiness, "rock unit cells" formation) - The first discovery of the rock universal property
It was shown that the primary element of the object-system - "rock as essentially natural mineral paragenesis" - one should consider not a mineral grain (even for the monomineral rock !) but some primary mineral grains aggregate or ensemble in Prigogine sense (or frustum - lump, in Latin). In several genetically different rocks (varying from sedimentary halites, metamorphic marbles, metasomatic skarn to magmatic granites, carbonatite, liparite and pegmatite) frustums were revealed under UV-irradiation (254 nm wave length). Features of this firstly discovered macroscopic rock phenomenon and its effect on rock crushing and ore dressing are discussed.