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metallisulfiidide (peam vase-, tsingi- ja niklisulfiidide) oksüdeeriva särdamise (põletamise) produkt (vt särdus), a solid mixture of oxides, sulphides and sulphates obtained from copper (nickel, zinc) ore during heating (roasting) (see: roasting)
särd . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif/est,other,mul/mtr/s%C3%A4rd/1/est (27.08.2026)
