actinoliticadj.
/ˌaktᵻnəˈlɪtɪk/, U.S. /ˌæktənəˈlɪdɪk/ Mineralogy.
Of the nature of or containing the mineral actinolite.
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actinolitic1811
uralitic1845
1811 A. Aikin in Trans. Geol. Soc. 1 212 The presence of actynolitic amygdaloid.
1843 Jrnl. Royal Asiatic Soc. 7 225 The latter is associated with gneiss, garnet rock, actinolitic schist, and altered limestone.
1878 P. H. Lawrence tr. B. von Cotta Rocks Classified (new ed.) 149 The diorite at Klausen contains actinolitic hornblende with oligoclase.
1919 A. V. Kidder & S. J. Guernsey Archeol. Explor. Northeastern Arizona 163 Some stone examples [of pendants] are shown in figure 74—a is actinolitic schist, b red jasper, c satin spar.
1938 Mineral. Mag. 25 207 (title) A chemical and optical study of a low-grade metamorphic actinolitic amphibole from Coronet Peak, western Otago, New Zealand.
2006 Science 19 May 1017/3 These rocks are moderately to highly altered by hydrothermal fluids to actinolitic hornblende, secondary plagioclase, [etc.].
This entry has been updated (OED Third Edition, November 2010; most recently modified version published online December 2021).
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adj.1811