This is the 9268th most frequent Portuguese word.
cassiterita
Cassiterite: A mineral, tin dioxide (SnO₂), and the primary ore of tin.
'Cassiterita' is used as a noun to define a specific mineral.
A cassiterita é um minério importante usado na produção de estanho.
Cassiterite is an important ore used in the production of tin.
'Cassiterita' is used as the object of the verb, indicating what was found.
Os geólogos encontraram depósitos de cassiterita na região montanhosa.
Geologists found deposits of cassiterite in the mountainous region.
'Cassiterita' is the subject of the sentence, emphasizing the focus of the research.