Table 1
Electron microprobe analyses in representative samples of yellow-golden crystals of anatase from Caxambu deposit, Gouveia (G-1 to G-4), and gray-bluish crystals from Jequitinhonha River, Diamantina (J-1 to J-4) (means of five spots; all iron content as Fe2+; Nd, not determined). Literature comparisons: RC-a and RC-b, Rio Cipó, Diamantina region; CL, Capão do Lana topaz mine, Ouro Preto; D-un, unknown locality in Diamantina region (Deer et al., 1962DEER, W. A. et alii. Rock-forming minerals, London: Longman, 1962, (v. 5 - Non-silicates). 371 p.).