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The giant kalgoorlie gold field revisited... Bonanza Green-Leader, or Oroya-style, lodes, with grades in excess of 1000 g/t Au, are similar to the Fimiston-style lodes, but are characterized by abundant visible gold, native tellurium and more abundant telluride minerals within roscoelite-bearing alteration zones....

général - core.ac.uk - PDF: doaj.org

Authigenic illite and organic matter: the principal hosts of vanadium in the mecca quarry shale at velpen...K0.8(A12.aMg0.sFe0.4V0.3)(SiT.2Alo.8)O20(OH)4, analogous to the V-rich dioc-tahedral mica, roscoelite....

PDF: www.clays.org

The composition and origin of vanadium-rich clay minerals in colorado plateau jurassic sandstones... V-illite and roscoelite from the Colorado Plateau are characteristic ofdiagenetic/hydrothermal environments....

PDF: www.clays.org

Clay minerals (1979) 14, 241. noteA vanadium bearing mica, roscoelite and a mixed-layer roscoelite-smectite have pre-viously been described by Hathaway (1959)....

PDF: www.minersoc.org

Attrition scrubbing of western carnotite and roscoelite ores /... Mineral Engineering Laboratory and tested in the scrubbing of western carnotite and roscoelite ores....

PDF: www.hathitrust.org