Whitmore, Francis D. Feldspar : mineral composition, geology and petrogenesis significance - New York Nova Science Publishers 2014 - x, 105 p. ilus. - Geology and Mineralogy Research Developments . ISBN: 978-1-62948-647-5 Subjects--Topical Terms: COMPOSICION QUIMICAFELDESPATOPETROGENESIS Universal Decimal Class. No.: 549.651/W55