Pliny on the formation of selenite.
Pliny the Elder, on selenite mined near Segóbriga (Segobriga near modern Saelices, Cuenca in Spain), Naturalis Historia 36.45: Umorem hunc terræ quadam anima crystalli modo glaciari et in lapidem concrescere manifesto apparet, quod cum feræ decidere in puteos tales, medullæ in ossibus earum post unam hiemem in eandem lapidis naturam figurantur. It is patently obvious […]
Also tagged 1st century, crystallum, lapis specularis, Pliny, selenite, translation