Antimony rarely occurs in its native metallic form in nature. It easily combines with other elements, usually including sulfur, to form over 100 different minerals. Of these minerals, only stibnite (SbS3) is mined commercially as a source for metallic antimony. Antimony is found in trace (that is, very minor) amounts in silver, copper and lead ores, and it is usually economically possible, as well as environmentally desirable, to extract the antimony from these ores when they are smelted.

Most of the antimony mined each year comes from China, which supplies over three-quarters of the world total. The remainder is from Russia, South Africa, Tajikistan, Bolivia, and a few other countries. Some antimony is produced as a by-product of smelting ores of other metals, mainly gold, copper and silver, in countries such as the United States, Canada, and Australia.

No mines are currently producing antimony ore in the U.S., but important amounts are yielded as a by-product of copper and silver mining. Numerous stibnite deposits occur in Idaho, Montana and Nevada, but most are worked out. Recycling of old lead-acid batteries (such as automobile batteries) contributes to U.S. antimony production.
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