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在世界所有的发达国家中,工业矿物的开采量和需要量超过冶金矿石的需要量。根据美国矿业局1985年的资料,工业矿物产值为180亿美元,而冶金矿石产值为50亿美元。所需要的主要矿物是,石英砂(生产玻璃)、长石、高岭土、方解石、膨润土(用于陶瓷工业、造纸工业)、石膏,以及砂和砾石(用于建筑业)等。工业对原料提出很高的要求,因此富矿床日益耗竭,必须使用新的选矿工艺,所以30年前未考虑作后备资源的矿体已可能开采。美国的未来是以工业矿物作保证的;工业矿物生产的增长一般要符合国家产品总量的增长,每年增长率为2～3%。但也有一定的复杂性。
In all developed countries in the world, the extraction and demand of industrial minerals exceed the requirements of metallurgical ores. According to the 1985 data from the U.S. Bureau of Mines, industrial mineral output is 18 billion U.S. dollars, while that of metallurgical ore is 5 billion U.S. dollars. The main minerals needed are quartz sand (glass), feldspar, kaolin, calcite, bentonite (used in the ceramic industry, paper industry), gypsum, and sand and gravel (used in the construction industry). Due to the high demands placed on raw materials by industry, depletion of rich ore deposits necessitates the use of new beneficiation processes, so that ore bodies that were not considered for backup 30 years ago are likely to be mined. The future of the United States is guaranteed by industrial minerals; the growth of industrial mineral production generally conforms to the growth of the total national product, with an annual growth rate of 2-3%. But there are some complications.