Abstract
Fluorite deposits occur in a variety of geologic environments throughout the globe. It may occur as the main or only economically recoverable ore mineral in deposits or may present as the accessory gangue minerals with other ores. It is therefore necessary to understand various genetic types of the fluorite deposit. The present paper synthesises the information of some of the known fluorite mineralisation from the world so that an understanding of them can help in establishing reliable criteria for further search of fluorite deposit. On the basis of a combination of geological background information and fluorite geochemistry, a new classification scheme is proposed.
Highlights
Fluorite (CaF2), commercially known as fluorspar, is an important industrial mineral that is used as a raw material in the metallurgical, ceramic and chemical industries apart from optical and lapidary uses
Keeping in view all the above classification schemes, we propose to classify all the fluorite deposit in three categories based upon their lithological association as: (a) fluorite deposits associated with felsic igneous rocks; (b) fluorite deposits associated with carbonatites and alkaline igneous rocks; and (c) fluorite deposits associated with carbonate and other rocks
Fluorine is considered as a characteristic component of the volatile phase during magmatic differentiation. As such the concentration of fluorite in the residual solutions resulting from the magmatic processes is due to the fact that the crystallizing mineral phases do not incorporate appreciable amounts of fluorine as a main constituent and the greater solubility of HF than water in silicate melts lowers the melting temperature
Summary
Economic Geology Research Group, Department of Geology, University of Jammu, Jammu, India. How to cite this paper: Magotra, R., Namga, S., Singh, P., Arora, N. and Srivastava, P.K. (2017) A New Classification Scheme of Fluorite Deposits.
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