| | Journal (article/letter/editorial) | from the Mesoproterozoic Itremo Group (Central Madagascar) Giulio Morteani and Dietrich Ackermand With...Mesoproterozoic quartzite of the Itremo Group (central Madagascar) and discusses the genesis of the protolith as...apatite, celestine, anhydrite, muscovite and dumortierite with the minor constituents zircon, monazite...trolleite, berlinite, lazulite, scorzalite, dumortierite, muscovite, kyanite and temperature data from...sand in a shallow continental shelf environment, ii.) chemical precipitation of phosphates and of phosphorus-rich | | | Journal (article/letter/editorial) | sillimanite, andalusite, rutile, corundum, topaz, dumortierite, garnet, and in restricted occurrences a daunting...occurrence at the American Progress mine, Bare Mountain district, Nye County, and from an undisclosed locality...with kyanite, andalusite, pyrophyllite, and dumortierite in a deposit near Quartzite, ROCKS & MINERALS...quartzite on Vitrefax Hill in the Cargo Muchacho district, Imperial County, and from Markleeville, Alpine... Lazulite specimens are reported from several Madagascar localities. It occurs in quartz veins cutting |
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