Asked by juhh
4 uses of pyrite
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1) Production of sulfuric acid — pyrite (FeS2) can be roasted to produce sulfur dioxide (SO2), which is converted to sulfuric acid. Historically this was an important industrial source of sulfur.
2) Decorative / jewelry use — polished pyrite (“fool’s gold”) and pyrite nodules are used as cabochons, beads, and ornamental specimens.
3) Indicator/host mineral for gold — pyrite commonly occurs with gold and is used as a pathfinder in exploration; some gold deposits are recovered from pyrite-rich ores.
4) Research material for photovoltaics and semiconductors — FeS2 has an attractive bandgap and abundance, so it’s studied as a low-cost absorber for experimental solar cells and other electronic applications.
(Extra note: pyrite oxidation can cause acid mine drainage, so handling and mining have environmental concerns.)
2) Decorative / jewelry use — polished pyrite (“fool’s gold”) and pyrite nodules are used as cabochons, beads, and ornamental specimens.
3) Indicator/host mineral for gold — pyrite commonly occurs with gold and is used as a pathfinder in exploration; some gold deposits are recovered from pyrite-rich ores.
4) Research material for photovoltaics and semiconductors — FeS2 has an attractive bandgap and abundance, so it’s studied as a low-cost absorber for experimental solar cells and other electronic applications.
(Extra note: pyrite oxidation can cause acid mine drainage, so handling and mining have environmental concerns.)
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