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单词 sphene
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Examples ofsphene

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The heavymineral assemblage consists of mainly zircon, apatite and monazite plus minor amounts ofspheneand hornblende.
From theCambridge English Corpus
The amphibolites are composed of hornblende, plagioclase, quartz, and minor components such assphene, apatite, epidote and biotite.
From theCambridge English Corpus
Common accessory minerals aresphene, ilmenite, hematite, rutile, tourmaline, apatite and zircon.
From theCambridge English Corpus
Amphibole andspheneassociated with albite and epidote-zoisite support this idea.
From theCambridge English Corpus
Spheneis commonly observed along the foliation planes and as inclusions in amphibole crystalloblasts.
From theCambridge English Corpus
Biotite and hornblende frequently enclose feldspar ophitically; less commonly iron oxides andsphenedo so.
From
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Other minor inclusions aresphene, apatite, rutile, zircon, and sphalerite.
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These include peridot, aquamarine, topaz, ruby, emerald, rare-earth minerals bastnaesite and xenotime,sphene, tourmaline, and many varieties and types of quartz.
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The minerals found are quartz, mica, chlorite, albite,sphene, and graphite.
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Owing to the quenching effect of iron,spheneexhibits no fluorescence under ultraviolet light.
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One series is essentially igneous (orthogneisses); usually they contain pale green pyroxene, a variable amount of feldspar,sphene, and iron oxides.
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The white and the pink facies are a more fine-grained variation of the melanocratic facies, they also lack hornblende andsphene.
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

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更新时间:2024/12/28 12:42:57