Fluid Inclusion Effect in Flotation of Sulfide Minerals / Эффект флюидного включения при флотации сульфидных минералов

The fluid is sealed in the host crystal, as an independent closed system of the phase boundary. To understand this definition, the following geological terms are carefully expanded:

(1) The diagenetic and ore-forming fluids in the definition refer to the fluid media, such as magma, solution, and gases around the main minerals, from which the inclusions are captured. They do not include the media’s debris such as crystal chips, cuttings, and crystals.

(2) Host crystals contain the inclusions, and are formed simultaneous with the inclusions.

(3) When the fluid captured in the inclusions is a supersaturated solution, a solid phase of the daughter mineral can be crystallized from the solution when the temperature decreases and be enclosed in the inclusion (see fig. 1.1). The inclusions containing daughter minerals (sealed within the inclusion) coexist with bubbles and liquids as well.

(4) Regarding the phase boundary between the inclusion and the host crystal, the outer contour of the inclusion observed under the microscope is the phase boundary between the inclusion and the host crystal. During the ore formation, due to changes in pressure, temperature, etc., the host crystal produces various crystal defects such as caves and cracks that capture fluids, which are later sealed within the cracks. Therefore, the outer contour of the inclusion is the equilibrium boundary interlayer between the inclusion and the host crystal <...>