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单词 wacken porphyry
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> as lemmas

wacken porphyry
wacken porphyry n. a form of porphyry (porphyry n. 3) containing basalt.
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the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > wacke
wacke1776
wacken1794
wacken porphyry1794
1794 R. Kirwan Elements Mineral. (ed. 2) I. 355 Wacken Porphyry... Greenish, blackish, reddish, or yellowish grey, or greyish black, or liver brown.
1807 J. Headrick View Mineral. Arran 61 The hills at the head of Glencloy are composed of wacken porphyry.
1826 Encycl. Londinensis XXI. 233 Porphyrius lamellosus, or wacken porphyry; consisting of wacke and hornblend.
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