Nickel olivines

WAA/CAL] De Waal, S. A., Calk, L. C., Nickel minerals from Barberton, South Africa VI. Liebenbergite, a nickel olivine. Am. Mineral, 58, (1973), 733-735. Cited on pages 239, 364. 

The aim of this paper is to show that olivine can be an interesting support for nickel, giving a system with high attrition resistance and strong linking with nickel. The present work showed the synthesis of olivine support and its evolution with calcinations temperature. The nickel/olivine catalyst was then synthesized via impregnation method. 

Herle PS, Ellis B, Coombs N, Nazar LF (2004) Nano-network electronic conduction in iron and nickel olivine phosphates. Nat Mato 3 147—152... 

Michael PJ (1988) Partition coefficients for rare earth elements in mafic minerals of high silica rhyohtes the importance of accessory mineral inclusions. Geochim Cosmochim Acta 52 275-282 Mysen BO (1979) Nickel partitioning between olivine and silicate melt Henry s Law revisited. Am Mineral 64 1107-1114... 

The chondrules contained in the chondrites contain olivine, pyroxene, plagiok-lase, troilite and nickel-iron they can make up 40-90% of the chondrites. Chondrules are silicate spheroids, fused drops from the primeval solar nebula. Because of their differing constitution, chondrites are further subdivided one group in particular is important for the question of the origin of life, and has thus been intensively studied—that of the carbonaceous chondrites. 

Nickel selenide, 22 87 Nickel-selenium, 22 73t Nickel sensitization, 17 119 Nickel silicate, 17 89 Nickel silicate green olivine, formula and DCMA number, 7 347t Nickel silicides, 17 121 uses for, 17 123 Nickel-silver, 7 759... 

Arndt, N. T. (1977). Partitioning of nickel between olivine and ultrabasic and basic komatiitic liquids. Carnegie. Inst. Washington Year Book, 76, 553-57. 

Hart, S. R. Davis, K. E. (1978). Nickel partitioning between olivine and silicate melt. Earth Planet. Sci. Letters, 40, 203-19. 

Kinzler, R. J., Grove, T. L. Recca, S. I. (1990). An experimental study of the effect of temperature and melt composition on the partitioning of nickel between olivine and silicate melt. Geochim. Cosmochim. Acta, 54, 1255-65. 

Clark A. M. and Long J. V. R (1971). Anisotropic diffnsion of nickel in olivine. In Graham Memorial Symposium on Dijfusion Processes. New York Gordon Breach. 

Ottonello G. and Morlotti R. (1987). Thermodynamics of nickel-magnesium olivine solid solution. J. Chem. Thermodyn., 19 809, 818. 

Among the elements that make up rocks and minerals, silicon, magnesium, and iron are of almost equal abundance followed by sulfur, aluminum, calcium, sodium, nickel, and chromium. Two of the most common minerals in meteorites and in the terrestrial planets are olivine ((Mg,Fe)2Si04) and pyroxene ((Mg,Fe,Ca)Si03). The composition obtained by averaging these two minerals is very similar to the bulk solar system composition, so it is really no surprise that they are so abundant. 

Chondrules exhibit a bewildering variety of compositions and textures (F ig. 6.1 a,b). Most are composed primarily of olivine and/or pyroxene, commonly with some glass. (For a crash course in mineral names and compositions, see Box 6.1.) If melt solidifies so quickly that its atoms cannot organize into crystalline minerals, it quenches into glass. Iron-nickel metal and iron sulfide occur in many chondrules, often clustered near the peripheries. The textures of... 

The amoeboid descriptor for amoeboid olivine aggregates refers to their irregular shapes. AOAs tend to be fine-grained and porous, and have comparable sizes to CAIs in the same meteorite. They consist mostly of forsterite and lesser amounts of iron-nickel metal, with a refractory component composed of anorthite, spinel, aluminum-rich diopside, and rarely melilite. The refractory component is sometimes recognizable as a CAI embedded within the AOA. The AOAs show no evidence of having been melted, but some contain CAIs that have melted. 

Rocks consisting essentially of olivine alone are known as dunites, the name coming from the occurrence of this rock in the Dun mountains of New Zealand. In the United States, this mineral is found in North Carolina, South Carolina, and Georgia, where corundum is associated wtith the dunite in commercial quantities. The olivine of peridotites alters readily to the mineral serpentine, often to such an extent that the rock itself is called a serpentine. As mentioned above, the pendotites may contain chromite or other valuable minerals, often to such an extent that they may be commercially exploited, for nickel, platinum, and precious garneL... 

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