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2025-07-27

“iddingsite”的英英意思

单词 iddingsite
释义 iddingsite Min.|ˈɪdɪŋzaɪt|
[f. the name of Joseph P. Iddings (1857–1920), American geologist + -ite1.]
A red-brown to orange-brown silicate of calcium, magnesium, and trivalent iron having an indefinite composition and formed as an alteration product of olivine.
1893A. C. Lawson in Bull. Dept. Geol. Univ. Calif. I. 30 The common characteristic of all facies of these eruptive rocks is the presence, as a phenocryst of a mineral which..has received but little attention... The most extended and satisfactory note that has yet appeared regarding it is by Prof. J. P. Iddings... For this reason and also in recognition of Professor Iddings' eminent services to the science of petrography, it is proposed to name the mineral iddingsite.1900H. E. Gregory in Bull. U.S. Geol. Survey No. 165. 181 This alteration product appears somewhat like the iddingsite found in the Californian teschenite.1961Amer. Mineralogist XLVI. 96 The optical homogeneity of many ‘iddingsites’ suggests that, even if the material is not to be regarded as a definite compound with relatively fixed chemical constitution, there is some structural control over the alteration process.1966W. A. Deer et al. Introd. Rock-Forming Min. 5 The composition of both iddingsite and bowlingite show considerable variation.
“iddingsite”的英英意思

 

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