feldspathoseadj.
Etymology: < feldspathic adj. + -ose suffix1.Previous versions of the OED give the stress as: ˌfel(d)spaˈthose.
1811 J. Pinkerton II. 448 It contains many felspathose points.
1880 J. D. Dana (ed. 3) 74 Feldspathose.
This entry has not yet been fully updated (first published 1895; most recently modified version published online March 2021).