In the oil field, "Barite 4.2" is primarily used as a weighting agent in drilling mud, due to its high specific gravity of 4.2 grams per cubic centimeter, which allows drillers to precisely control the density of the drilling fluid and maintain wellbore stability by counteracting the pressure exerted by the formation during drilling operations, preventing blowouts and other complications; Essentially, it helps manage pressure by adjusting the mud weight to match the formation pressure