pyriticadj.
/pʌɪˈrɪtɪk/, U.S. /paɪˈrɪdɪk/, /pəˈrɪdɪk/ 1. Geology and Mining. Of or relating to pyrites; consisting of, containing, or resembling pyrites.
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the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > pyrites
pyritical1734
pyritose1741
pyritous1741
pyritic1751
pyrity1757
pyritaceous1784
pyritiferous1828
the world > the earth > minerals > types of mineral > sulphides and related minerals > [adjective] > pyrites
pyritical1734
pyritose1741
pyritous1741
pyritic1751
pyritaceous1784
1751 J. Hill Hist. Materia Medica 324 Nodules or Masses of Clay... They have always something of the pyritic Kind in their Center.
1771 J. Hill Fossils 108 Pyritic spar.
1802 Philos. Trans. (Royal Soc.) 92 179 Bright shining spiculæ, of a metallic or pyritic nature.
1813 R. Bakewell Introd. Geol. iv. 88 Yorkshire slate..is sometimes covered with thin pyritic configurations resembling trees.
1892 Pall Mall Gaz. 5 May 2/1 The deep levels..where the ore becomes pyritic.
1940 F. F. Grout Kemp's Handbk. Rocks (ed. 6) x. 224 Coarse pyrite may grow in a slate that is otherwise fine-grained, making a pyritic slate.
1991 Sci. Amer. May 79/1 Sulfur in coal is either chemically bound to the carbon atoms (called organic sulfur) or combined with finely dispersed iron particles that are distinct from the coal (pyritic sulfur).
2. Mining. Designating a process for smelting sulphide-containing copper ores that utilizes the heat produced by the oxidation of the sulphide.
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society > occupation and work > industry > working with specific materials > working with metal > [adjective] > smelting > type of
pyritic1897
1897 A. K. Huntington & W. G. McMillan Metals (new ed.) 331 This is the process known as pyritic smelting, and there is some prospect that it may take a prominent position in the metallurgy of copper, although at present it is mainly employed in the extraction of gold and silver from complex ores.
1926 D. M. Liddell Handbk. Non-ferrous Metall. II. xxvii. 945 The essential requirements for pyritic smelting are siliceous material which is high in free silica, and heavy pyrite ore.
1993 Technol. & Culture 34 592 Although TCC's new stack reportedly was built to accommodate the needs of pyritic smelting, many thought it would also help ease the smoke problem.
This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).
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adj.1751