Pumice
Volcanic glass, used in its powdered form as pounce on parchment; in its consolidated form, it was employed to scrape parchment for reuse as a palimpsest.
Volcanic glass, used in its powdered form as pounce on parchment; in its consolidated form, it was employed to scrape parchment for reuse as a palimpsest.
- French:Pierre ponce
- Italian:Pietra pomice
- Spanish:Piedra pómez
Michelle Brown, Understanding Illuminated Manuscripts (Malibu, CA: J. Paul Getty Museum in association with the British Library, c1994).
Ronald Reed, The Nature and Making of Parchment (Leeds: Elmete, 1975), 87-89.