The Perseverance rover has spotted a black-and-white striped rock on Mars ... as per early interpretations igneous and/or metamorphic processes could have created its stripes.

The striking black-and-white striped rock, dubbed "Freya Castle," was captured ... preliminary interpretations suggest that “igneous and/or metamorphic processes could have created its stripes.” ...

The sediment comes from eroded rocks carried there by rivers or ice, and from the skeletons of sea creatures. Metamorphic rocks ... Marble is white or have swirls of colour with a crystallised ...