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单词 richellite
释义

richelliten.

Brit. /riːˈʃɛlʌɪt/, U.S. /riˈʃɛlaɪt/
Origin: A borrowing from French. Etymon: French richellite.
Etymology: < French richellite (G. Césaro and G. Despret 1883, in Ann. de la Soc. Géol. de Belgique 10 36) < Richelle , the name of a locality near Visé in Belgium, where the mineral was discovered + -ite -ite suffix1.
Mineralogy.
An amorphous iron-rich mineral occurring as reddish- or yellowish-brown masses in phosphatic sedimentary rocks. Richellite is a hydrated phosphate and hydroxide of calcium and iron( iii) with fluorine, Ca3Fe3+10[(OH, F)3| (PO4)2]4. Crystal system: amorphous or (on heating) tetragonal.
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the world > the earth > minerals > types of mineral > phosphates > [noun] > calcium or iron phosphates
richellite1883
xanthoxenite1920
1883 Amer. Jrnl. Sci. 125 411 MM. G. Cesaro and G. Despret have given the name richellite to a supposed new mineral from Richelle in the neighborhood of Visé, Belgium.
1935 J. W. Mellor Comprehensive Treat. Inorg. & Theoret. Chem. 14 lxvi. 412 G. Cesaro and G. Desprez [sic] described a mineral from Richelle, Belgium, which they called richellite. The analysis corresponds with calcium ferric fluophosphate, although G. Cesaro gave 8Fe(PO4).Fe2OF2.(OH)2.36H2O for the formula.
1963 Amer. Mineralogist 48 300 Richellite, a calcium-iron hydrated phosphate, appears to be virtually amorphous.
1999 Rocks & Minerals (Nexis) 1 Nov. 370 Gold Quarry mine: burangaite, carbonate-cyanotrichite, corderoite.., richellite.
This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).
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n.1883
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