 | | Journal (article/letter/editorial) | | AND M A N G A N E S E G E O C H E M I S T R Y IN FLUORITE DEPOSITS FROM SARDINIA {ITALY) M. BARBIERI, L...Yttrium, lanthanum and manganese geochemistry in fluorite deposits from Sardinia (Italy). Chem. Geol., 40:...lanthanum and manganese have been analyzed in 71 fluorite and in 66 calcite samples from 19 mineral deposits...of Sardinia and in 48 Paleozoic country rocks. Fluorite from karst deposits does not contain detectable...Comparison of the Y/La ratio of the hydrothermal fluorite, country rocks and the corresponding data reported |  | | Book (volume) | | of -cobalt-nickel ore. The cobalt veins of Thuringia differ from those of the Dobschau, just worked...' This Kupferschiefer is cases. lean in this district, carrying only 1.4% of copper, and no silver,...fissures known as 'rucken' in the Mansfeld copper district also contain occasional nickelite, together with... known examples of this type is the cobalt district of Schneeberg, in Saxony, a mountainous region...present. Besides quartz-cobalt veins the Schneeberg district contains quite a 3 variety of vein types, which |
|
