Garnierite is a general name for a green nickel ore which is found in pockets and veins within weathered and serpentinized ultramafic rocks. It forms by lateritic weathering of ultramafic rocks and occurs in many nickel laterite deposits in the world. It is an important nickel ore, having a large weight percent NiO.[1][2] As garnierite is not a valid mineral name according to the Commission on New Minerals, Nomenclature and Classification (CNMNC), no definite composition or formula has been universally adopted. Some of the proposed compositions are all hydrous Ni-Mg silicates,[1][3] a general name for the Ni-Mg hydrosilicates which usually occur as an intimate mixture and commonly includes two or more of the following minerals: serpentine, talc, sepiolite, smectite, or chlorite,[4] and Ni-Mg silicates, with or without alumina, that have x-ray diffraction patterns typical of serpentine, talc, sepiolite, chlorite, vermiculite or some mixture of them all.[5]
^ abPecora, W.T., Hobbs, S.W. and Murata, J.K. (1949) Variations in garnierite from the nickel deposit near Riddle, Oregon. Economic Geology, 44, 13–23.
^Roqué-Rosell, J., Villanova-de-Benavent, C., Proenza, J.A., Tauler, E. and Galí,S. (2011) Distribution and speciation of Ni in sepiolite-falcondoite-type “garnierite” by EXAFS. Macla, 15, 183–184.
^Faust, G.T. (1966) The hydrous nickel-magnesium silicates – The garnierite group. The American Mineralogist, 51, 279–298.
^Brindley, G.W. and Hang, P.T. (1973) The nature of garnierites – I Structures, chemical compositions and color characteristics. Clays and Clay Minerals, 21, 27–40.
^Springer, G. (1974) Compositional and structural variations in garnierites. Canadian Mineralogist, 12, 381–388.
Garnierite is a general name for a green nickel ore which is found in pockets and veins within weathered and serpentinized ultramafic rocks. It forms by...
minerals include pentlandite and a mix of Ni-rich natural silicates known as garnierite. Major production sites include the Sudbury region, Canada (which is thought...
corrosion resistance Pentlandite (Fe,Ni)9S8 with other sulphide minerals; garnierite (NiMg) with chromite and in laterites; niccolite (NiAs) in magmatic sulphide...
silicates in a smectite complex in a laterite. The major nickel mineral is garnierite. "Sorowako Mine (PT International Nickel mine; Soroaka Mine; Soroako Mine)...
incorporated. In pockets and fissures of the serpentinite rock green garnierite can be present in minor quantities, but with high nickel contents – mostly...
2–5 percent, it can reach 10–15 percent in scattered deposits of green garnierite. Those areas were developed first, using primitive manual extraction methods...
manganese-nickel silicates in a laterite soil. The nickel is found as garnierite as is associated with the iron minerals limonite, magnitite and goethite...
after the company. Falcondoite is frequently associated with sepiolite, garnierite, talc, and serpentine, and is commonly nickel-bearing. While the chemical...
nickel ore, having a large weight percent of nickel oxide, which was named garnierite in his honor by his peers. This discovery was formalized at the Paris...
serpentinite was not a favorable rock for the residual accumulation of nickel. Garnierite in the nickel-silicate deposit near Riddle, Oregon, had three modes of...
minerals. Pimelite apparently constitutes part of the mixtures called garnierite or noumeite, and it could form a series with stevensite or saponite. Pimelite...
silicate veins. These veins contain the distinctive green mineral known as garnierite (actually pimelite, a form of nickeliferous talc) as well as quartz and...
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