quartzo

== Portuguese == === Alternative forms === quarço === Etymology === Borrowed from German Quarz, ultimately from Proto-Slavic *tvьrdъ (“hard”). === Pronunciation === === Noun === quartzo m (plural quartzos) (mineralogy) quartz === Further reading === “quartzo”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026 “quartzo”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026