arrastra
Noun
Meaning
arrastra (plural arrastras)
A device formerly used by gold-miners for grinding auriferous quartz, crudely resembling a mortar and pestle, with the crushing element dragged around by horse or mule.
Noun
arrastra (plural arrastras)
A device formerly used by gold-miners for grinding auriferous quartz, crudely resembling a mortar and pestle, with the crushing element dragged around by horse or mule.