<departmental bulletin paper>
On the oxidation process of chocolate-colored ore from the Ikenotsuru mine, Kumamoto Prefecture

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Abstract The chocolate-colored ore from the Ikenotsuru mine, Kumamoto Prefecture is composed mainly of hausmannite, tephroite, "chocolate material", and a small quantity of rhodochrosite. The oxidation process... by weathering in situ of this ore can be expressed by the following schema: chocolate-colored ore→M nO_2 gel→m anganoan nsutite→n sutite.show more

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Created Date 2021.11.18
Modified Date 2022.06.20

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