chloropaln.
/klɒˈrəʊpəl/ Mineralogy.
A green or greenish-yellow hydrated silicate of iron, resembling opal in appearance.
ΚΠ
1826 E. Emmons Man. Mineral. 170 Chloropal.
1868 J. D. Dana Min. (1884) 462 Chloropal is partly decomposed by muriatic acid.
This entry has not yet been fully updated (first published 1889; most recently modified version published online June 2018).
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n.1826