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ränidioksiidist aherainega, mineraali magnetiit madala sisaldusega (20 - 30 %) rauamaak (vt magnetiit), a low-grade siliceous iron ore composed of 20-30 % magnetite
takoniit . Materjalitehnika terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif/est,rus,mul/mtr/takoniit/1/est (02.11.2026)
