Vanadian-+hromian tourmaline (as much as 4.06 wl.Vo Y 2O3 and 2.387o Cr2O3) and vanadian muscovite (w much as 2.13Vo V2O3) occur in contact-metamorphosed carbonaceous metasediments of the hibrezhnaya anticlinal zone in himorye, Russia. Cfus'ias are compositionally zoned, showing depletion in V and Cr, and enrichment in Al, Mg and Fe, from core to-rim. Zoning is attributed to progressive decrease of VindCr contents in the host rock durilg the coune of crystal growth. Cr and V are incorporated according to the schemes: Cf* <+ Al3+ and V3* <-+ 1Mg2*,Fe2*,Mn2*;. The charge increase that results from the latter exchangeisconsideredtobecompensatedbytheconcomitantsubstitutionofrvAlforSiandbytheappearanceofvaca in the X site. The associated vanadian muscouite contains minor amounts of Mg, Fe, Ti and Na. An empirical formula calculated from results of an electron-microprobe analysis is (K1.9aNas.69)r2.03(Al3.34v0.29lvlgn.26Tis.65Fe0.0rx, (Si6.27Alr.i3)x.00O22(OH)2. Both minerals are products of contact metamorphism of V-Cr-bearing carbonaceous rocks.Keywords: vanadian=chromian tourmaline, vanadian 2Ml muscovite, electron-microprobe analysis, carbonaceous rocks, contact metamorphism, himorye, Russia. SOMMAIRENous avons trouv6 une tourmaline vanadifdre et chromifare (usqu'd 4.067o de V2O3 et 2.38Vo de Cr2O3' en Potds) et unp muscovite vanadifbre (usqu'd 2.737o V2O3) dans des m6tasddiments carbonac6s d'une aur6ole de contact dans la zone anticlinale de himorye, en Rusiie.
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