2024-03-28T21:53:13Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/348302022-11-17T02:08:08Zhdl_2115_34817hdl_2115_34816hdl_2115_116The Alpine Chrome Ores from JapanBamba, Takeo450The author proposes a tentative model of classification of the Alpine chrome ores in this paper and the various types of chrome ore from Japan have been assigned to the positions in the classification model. Mineralogical study on chrome ore has recently remarkably advanced according to the development of modern instruments such as EMPA. Thus the ferritchromite surrounding the hostchromite from the Wakamatsu Mine, southwestern Japan, has become to be chemically discussed. Reflectivity, hardness (VHN), chemistry and lattice constant of ore-forming chromites representing the several types of chrome ore from Japan are reported and finally the mutual relations between these elements are interpreted. It is noteworthy that reflectivity and lattice constant of chromite may correspond to its Cr2O3 content.北海道大学Departmental Bulletin Paperapplication/pdfhttp://hdl.handle.net/2115/34830https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/34830/1/18_1-2_p167-179.pdf0018-3474北海道大学理学部紀要181-21671791978-02engpublisher