Blue Ridge province _____________ _ Spruce Pine district ____________ Madison County and Haywood County...County _____________________ _ Zirconia district ___________ ----Macon, Jackson, and Clay Counties __ ----...origin. Quartzite and conglomerate in the Mkushi district of the Central Province of the Federation of Rhodesia...composition intrusive into quartzite in the Diamantina district of Brazil (Derby, 1899, p. 348; 1900a, p. 209-213;...Except for the greenish schist in the Diamantina district, metamorphosed equivalents of mafic igneous rocks |