Browsing by Author "Yates M.G."

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HYALOTEKITE, (BA,PB,K)4(CA,Y)2SI8(B,BE) 2(SI,B)2O28F, A TECTOSILICATE RELATED TO SCAPOLITE: NEW STRUCTURE REFINEMENT, PHASE TRANSITIONS AND A SHORT-RANGE ORDERED 3B SUPERSTRUCTURE

Christy A.G.; Mayo S.C.; Grew E.S.; Yates M.G.; Belakovskiy D.I. (1998)

Hyalotekite, a framework silicate of composition (Ba,Pb,K)(4)(Ca,Y)(2)Si-8(B,Be)(2) (Si,B)(2)O28F, is found in relatively high-temperature(greater than or equal to 500 degrees C) Mn skarns at Langban, Sweden, and peralkaline ...
KORNERUPINE PARAGENESES IN WHITESCHISTS AND OTHER MAGNESIAN ROCKS: IS KORNERUPINE + TALC A HIGH-PRESSURE ASSEMBLAGE EQUIVALENT TO TOURMALINE + ORTHOAMPHIBOLE?

Grew E.S.; Yates M.G.; Pertsev N.N.; Vrána S.; Shearer C.K.; Wiedenbeck M. (1998)

Kornerupine, (□,Fe,Mg)(Mg,Fe,Al)9(Si,Al,B)5 (O,OH,F)22, has been reported with talc in rocks from six localities worldwide, but only at Chilapila Hill in the Lufilian Arc, Zambia do textural relationships imply that ...
SAPPHIRINE+FORSTERITE AND SAPPHIRINE+HUMITE-GROUP MINERALS IN AN ULTRA-MAGNESIAN LENS FROM KUHI-LAL, SW PAMIRS, TAJIKISTAN: ARE THESE ASSEMBLAGES FORBIDDEN?

Grew E.S.; Yates M.G.; Chernosky J.V.; Pertsev N.N.; Christy A.G.; Marquez N. (1994)

Sapphirine occurs with humite-group minerals and forsterite in Precambrian amphibole-facies rocks at Kuhi-lal, SW Pamir Mountains, Tajikistan, a locality also for talc+kyanite ± magnesiohornblende whiteschist. Most of these ...

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