Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy;Vol.XVIII, Nos.1-2

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The Alpine Chrome Ores from Japan

Bamba, Takeo

Permalink : http://hdl.handle.net/2115/34830

Abstract

The 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.

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