Royal Belgian Institute for Natural Sciences, Geological Survey of Belgium, Brussels, Belgium.
Spectrochim Acta A Mol Biomol Spectrosc. 2011 Oct;80(1):138-47. doi: 10.1016/j.saa.2011.03.007. Epub 2011 Mar 29.
Natural heterogenite (CoO·OH) samples were studied by Raman microspectroscopy, electronic microprobe and Electronic BackScattered Diffraction (EBSD). Raw samples and polished sections were made from 10 mines covering the Katanga copperbelt (Katanga Province, Democratic Republic of Congo). Four typical Raman responses have been obtained leading to investigate the laser-induced dehydroxylation of heterogenite into a Co-spinel structure. The results are also compared with EBSD patterns from oven heated heterogenite samples. A close relationship was established between the chemical substitutions of Co by mainly Cu, Ni, Mn and Al and their impact on the mineral Raman response.
采用激光拉曼微探针、电子探针和电子背散射衍射（EBSD）对天然水钴矿（CoO·OH）样品进行了研究。采集了来自刚果民主共和国加丹加省（Katanga Province）的 10 个矿区的原始样本和抛光薄片。获得了四种典型的拉曼响应，从而研究了水钴矿在激光诱导下脱羟基形成尖晶石结构 Co-spinel。实验结果还与经过烘箱加热的水钴矿样品的 EBSD 图谱进行了比较。建立了 Co 被主要的 Cu、Ni、Mn 和 Al 取代的化学取代与矿物拉曼响应之间的密切关系。
