Assertion: plot | /r/CapableOf | illustrate mineral
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Source sentences:
text: In this work, he described and illustrated various rocks, minerals and fossils, including the first known illustration of a dinosaur bone which he attributed to a giant (later recognised as the femur of a Megalosaurus), but believed that most fossils were not remains of living organisms but rather crystallisations of mineral salts with a coincidental zoological form.