至今,吐界上已经发现的褐钇铌矿族矿物中仅有钛褐钇铌矿、铈褐钇铌矿、铈-钇-褐钇铌矿……等,而未见有矿物中稀土元素以钕为最富的单斜钕褐钇铌矿的报道。 一、矿物产状和物理性质 这次我们在内蒙白云鄂博西矿区发现的β-钕褐钇铌矿产出在元古界白云鄂博群上部的钠闪石化白云石型铌、稀土矿石内,与之伴生的矿物有铁白云石、钠闪石、黑云母、磁铁矿、独居石、氟碳铈矿、钕易解石、钛铁矿、黄铁矿、铈-钇-褐钇铌矿、铈褐钇铌矿、钕褐 To date, only the Ti-Yttrium-Niobium ore, Ceritanium Yttrium-Niobium Mine, Ce-Yttrium-Yttrium Ybobite Minerals, etc. have been discovered in the spit kingdom, Neodymium is reported as the richest monoclinic neodymium-yttrium niobium ore. I. Mineral Properties and Physical Properties The β-neodymium-yttrium and niobium ore that we found in the Baiyun Obo West Mine in Inner Mongolia came out of the sodium flashing dolomite niobium and rare earth ores in the upper part of the Proterozoic of the Bayan Obo Group, Associated minerals are iron dolomite, sodium amphibole, biotite, magnetite, monazite, bastnaesite, neodynium calcite, ilmenite, pyrite, cerium-yttrium-yttrium niobium ore, cerium Brown yttrium niobium ore, neodymium brown