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单词 francolite
释义

francolite /'fræŋkə,lait/

英汉-汉英词典
n. 细晶磷灰石
词组 | 习惯用语
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  • franklin n. 小地主;乡绅
  • Francois n. 弗朗索瓦(人名)
  • frangibility n. 脆弱;易碎;脆弱性
francolite n. [矿物] 细晶磷灰石
英语百科

Francolite

Francolite is a carbonate rich variety of the mineral fluorapatite and is present in most sedimentary phosphorites. It has a variable chemical composition which can be represented by (Ca,Mg,Sr,Na)10(PO4,SO4,CO3)6F2−3. The mineral was named after its occurrence at Wheal Franco, Whitchurch, Tavistock District, Devon, England.

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更新时间:2025/6/18 7:31:24