göz taşı

== Turkish == === Etymology === By surface analysis, göz (“eye”) +‎ taş (“stone”). === Noun === göz taşı (definite accusative göz taşını, plural göz taşları) bluestone (Copper(II) sulfate, CuSO4(H2O)x where x is 0-5, used as a coloring agent in glass-making and pottery and for other purposes) Synonym: bakır tuzu ==== Declension ==== === Further reading === “göz taşı”, in Turkish dictionaries, Türk Dil Kurumu Ayverdi, İlhan (2010), “göz taşı”, in Misalli Büyük Türkçe Sözlük, a reviewed and expanded single-volume edition, Istanbul: Kubbealtı Neşriyatı