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单词 alalite
释义

alaliten.

Brit. /ˈaləlʌɪt/, U.S. /ˈæləˌlaɪt/
Origin: From a proper name, combined with an English element; modelled on a French lexical item. Etymons: proper name Ala , -lite comb. form1.
Etymology: < Ala, the name of a valley in the Piedmont region of northern Italy, where the mineral was found + -lite comb. form1, after French alalite (B. Bonvoisin 1806, in Jrnl. de physique 62 409).
Mineralogy. Now rare.
A mineral regarded as a variety of or identical with diopside.
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the world > the earth > minerals > types of mineral > silicates > inosilicates single chain > [noun] > pyroxene > clinopyroxenes > diopside
diopside1808
alalite1809
malacolite1814
mussite1819
canaanite1844
1809 Jrnl. Nat. Philos., Chem., & Arts Jan. 14 (heading) Remarks on the diopside,..comprising two varieties found in the Piedmontese Alps by Mr. Bonvoisin, and described in the Journal de Physique for May, 1806, under the names of mussite and alalite.
1837 J. D. Dana Syst. Mineral. vi. 307 The name Alalite has been applied to specimens of this variety [of diopside] from Ala, in Piedmont.
1875 F. A. Genth Prelim. Rep. Mineral. Pennsylvania 65 Alalite (?) or Mussite is found in grayish-white columnar, cleavable masses in Bailey's limestone quarry, East Marlborough township, Chester county.
1970 Science 30 Jan. 676/3 Multiple lamellar twinning parallel to (001) is developed in diopside (variety alalite, Mussa Alp, Piedmont, Italy) by shock-loading fine particulate material at about 200 kb.
This entry has been updated (OED Third Edition, September 2012; most recently modified version published online December 2021).
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n.1809
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