Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Vickers Micro Hardness of Magnetite, Maghemite and Hematite of a Titaniferous Vein Magnetite of Bonai, Orissa, and its Crypto-Textural Implications


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1 Department of Applied Geology, Jadavpur University, Calcutta, India
     

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Save for deviation due to the complex crypto-textures, the Vickers hardness (Hv) increases from magnetite, then to maghemite and considerably in hematite. The deviation of Vickers hardness from the comparative graph of a particular mineral species can be accounted for by the presence in the sample of other mineral species (not identifiable under 400 magnification) and also by the variations in crypto-textural dimensions.
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  • Vickers Micro Hardness of Magnetite, Maghemite and Hematite of a Titaniferous Vein Magnetite of Bonai, Orissa, and its Crypto-Textural Implications

Abstract Views: 583  |  PDF Views: 2

Authors

Nirendra Bhaumik
Department of Applied Geology, Jadavpur University, Calcutta, India

Abstract


Save for deviation due to the complex crypto-textures, the Vickers hardness (Hv) increases from magnetite, then to maghemite and considerably in hematite. The deviation of Vickers hardness from the comparative graph of a particular mineral species can be accounted for by the presence in the sample of other mineral species (not identifiable under 400 magnification) and also by the variations in crypto-textural dimensions.