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单词 trinacrite
释义

> as lemmas

trinacrite
trinacrite n. /ˈtrɪnəkraɪt/ Mineralogy a brown variety of palagonite n. (Now considered as a rock.)
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > ejected volcanic material > [noun] > ash
ash1667
pozzolana1684
volcanic ash1776
trinacrite1854
Santorin earth1868
pumicite1916
1854 J. D. Dana Syst. Mineral. (ed. 4) ii. 166 Trinacrite..is dull brown and cleavable or micaceous, and is mixed with..Siderosilicite.
1868 H. Watts Dict. Chem. V. 240 Siderosilicite, a mineral forming, together with trinacrite, a brown mass on the tufa..at Cape Passaro, the southernmost point of Sicily.
extracted from Trinacrianadj.
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as lemmas
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