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我国川东南某地中低温热液重晶石——萤石型矿床的矿石中,含萤石49.28％,重晶石42.93％,和少量方解石、玉髓、褐铁矿等。主要化学组成为(％):Ca 27.24,Ba 25.07,F 24.78,SO_3 15.33。 由于后生成的萤石沿着重晶石裂隙贯入,故矿石内常见萤石脉与重晶石脉相互穿插;部分重晶石受萤石浸入的影响产生变晶,使粗粒板状重晶石变成细小不一粒状集合体;有的重晶石已被萤石溶蚀交代,在萤石内留下许多交代的细小残余体,粒度一般2～20微米。矿石硬度低,易泥化,使得萤石、重晶石难于分离。
In the ore of middle-low temperature hydrothermal barite-fluorite deposits in a certain area in southeast Sichuan, it contains 49.28% fluorite, 42.93% barite and a small amount of calcite, chalcedony, limonite and so on. The main chemical composition (%): Ca 27.24, Ba 25.07, F 24.78, SO_3 15.33. Because the post-generated fluorite penetrates along the barite fissures, the common fluorite veins and barite veins interpenetrate each other in the ore. Part of the barite is transformed into crystal by the influence of fluorite immersion, Stone into small and granular aggregates; some barite has fluorite corrosion account, left in the fluorite account for many small residues, the general size of 2 to 20 microns. Ore low hardness, easily muddy, making fluorite, barite difficult to separate.