411 REFERENCE · Wiktionary
Bologna stone
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Alternative forms
en Bolognian stone
Etymology
Specimens were found near Bologna in the 17th century by Vincenzo Casciarolo.
Noun
en alchemy The phosphorescent form of baryte.
en Galileo's Visions: Piercing the spheres of the heavens by eye and mind Marco Piccolino 2013 It was concerned with the causes of the phosphorescence of the so-called 'Bologna stone' (a mineral named by the author of the book with the more imposing term of litheosphorus).