quartzing

== English == === Etymology === From quartz + -ing. === Noun === quartzing (uncountable) The extraction of quartz from the earth, and moreover the subsequent extraction of gold from quartz. 1910, R. R. Moore, Recent Reverberatory Smelting Practice, in the Engineering and Mining Journal, volume 89, reprinted in Chemical Abstracts, published by the American Chemical Society, volume 4, number 13, page 1860: The operations of quartzing, charging, skimming, matte handling, firing and grating are carried out at Garfield about the same as at Anaconda and Cananea. 1996, Historic Preservation, volume 48, issues 1–3, page 64: In 1857, Hutchings’ California magazine bragged that the Suite / Creek Foundry and another at Grass Valley, fifty miles north, were "the only works in the mining district where all kinds of machinery in brass and iron are cast for quartzing, and without the […] " The penetration of another rock or of earth by quartz. 1999, Russian Geology and Geophysics, volume 40, issues 9–12, page 1594: Fig. 2. A schematic geological map (a) and section of ore zone (b) of the Sukhol Log deposit. […] 5 — zone of intense veinlet quartzing and mylonitization ("Radostnaya");