All articles by Wretch Fossil are here: http://www.wretch.cc/blog/lin440315&category_id=0
Numerous rocks on Mars are not real rocks. They are fossils (note 1). Some “bedrocks” on Mars are fossils, too. Meteorites originate from Mars and most of them are Mars fossils (note 2). For example, the following is a photo of a “rock” found at Rocknest. It shows textures rarely, if ever, seen on real Earth rocks: http://www.wretch.cc/album/show.php?i=lin440315&b=20&f=1556559127&p=254