(en) J.D. Dana, A System of Mineralogy Comprising The Most Recent Discoveries, New York, Putnam, (lire en ligne), 384
doi.org
dx.doi.org
(en) MI Carretero et Manuel Pozo, « Clay and non-clay minerals in the pharmaceutical and cosmetic industries Part II. Active ingredients », Applied Clay Science, vol. 47, nos 3–4, , p. 171–181 (DOI10.1016/j.clay.2009.10.016)