Journal - Differential thermal analysis of Kharidhunga Magnesite

Differential thermal analysis of Kharidhunga Magnesite

Vishnu Dangol

Department of Geology, Tri-Chandra Campus

Kathmandu, Nepal

Jour. Nep. Geol. Soc., Vol. 7, 1991, 111-114


Abstract

The DTA curves of seven representative samples from the Kharidhunga Magnesite Deposit are asymmetric and show a sharp rise after attaining the maxima between 670 and 700oC, which indicates the siliceous nature of the magnesite. The overlapped endothermic peaks at 770oC and 860oC characterize the presence of calcite and dolomite respectively as the other impurities. The results of DTA and TG are also compared with the available data of chemical analysis.

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