Metadata
Author: ParaCrawl Corpus
Data
English[en]
They get it by mixing three minerals: quartz (SiO2), lead sulfide (PbS) and a clayey sandstone which contains iron oxide (Fe2O3).
Spanish[es]
Lo obtienen mezclando tres minerales: el cuarzo (SiO2), el sulfuro de plomo (PbS) y una arenisca arcillosa que contiene óxido de hierro (Fe2O3).