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Can pyrite be melted?

In: Mining, Rocks and Minerals [Edit categories]

Answer:

I don't think so; it begins to decompose into ferrous sulfide (FeS) and elemental sulfur around 550 °C. The sulfur reacts with air to form sulfur dioxide. At higher temperatures, the ferrous sulfide also breaks down, leaving iron oxide. Pyrite roasting is sometimes used as a first step toward producing sulfuric acid. It's a nasty process.

First answer by JazzHarper. Last edit by JazzHarper. Contributor trust: 81 [recommend contributor ]. Question popularity: 1 [recommend question].

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