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ABSTRACT
Jasper and agat mines have been recognized in the Soltanieh, about 56 km of northeastern of Qom city and about 80 km of Tehran. Geologically, this region locates in Structural zonation of central Iran and Orumieh- Dokhtar volcanic belt, and that field had been studied, and there is (showing) evidence of precious stones and expensive mineral in the original of volcanic rocks of Orumieh- Dokhtar area. In the scattered outcrops of volcanic masses and sedimentary deposits of this rocks would be recognizable variety of valuable precious minerals. Regarding providing of geological maps in the scale of 1/2500 and gathering sample of minerals stones and sediments, it had been identified proportional concentration of jasper and agat in the five parts of this area. Economical potential had been confirmed to do different trace cutting and sections in these parts and preparatory extracting to open top, and it is estimated about 2500 tons of storage and possibility of extracting about 150 tones. In this paper has been tried to compare original of making above volcanic rocks to other part of Orumieh- Dokhtar belt toward north western to south eastern that would be included vast parts of Iran geology, it would be introduced other hopeful regions in southern parts.
Keywords: Gemstone, Precious stones, Orumieh-Dokhtar Volcanic belt
INTRODUCTION
Looking at the figures related to the value of global production of raw and processed precious stones mining industry as well as the greatness of this field is obvious by adding the precious stones that are artificially produced in laboratories and are used in various industries, the development importance of this industry is characterized by Considering that some gemstones and semiprecious handmade products and comparing them with the volume of trade in many countries such as China, India, Sri Lanka, Africa and Thailand, this industry is one of the most important markets therefore mineralseeking, Geological studies of precious stones and identify promising areas for mineral extraction and processing valuable minerals should be considered as one of economic projects in countries with significant mineral potential such as Iran.
Therefore this paper is a case study of potential mining areas and extended it to other areas of Orumieh- Dokhtrar volcanic belt Iran, attempts to identify other areas. Range of geographical and geological...