'aragonitic' originates from the mineral name 'aragonite', which ultimately comes from Spanish, specifically the word 'Aragón', where 'Aragón' meant 'the Aragon region (in Spain)'.

'aragonitic' changed from New Latin/Formed from 'aragoniticus' (based on 'aragonite') and entered scientific English usage from the mineral name 'aragonite'; the adjective form was created by adding the English/adjectival suffix '-ic'/'-itic' to the mineral name.

Initially the root referred to the place name 'Aragón' (the region), but over time the term came to denote the mineral 'aragonite' and adjectives like 'aragonitic' now mean 'of or relating to the mineral aragonite' or 'made of aragonite'.