First Finding of Satin Spar Gemstone in Iran, Folded Zagros Zone, Fars Region | ||
| Journal of Mining and Environment | ||
| مقاله 8، دوره 11، شماره 4، دی 2020، صفحه 1039-1046 اصل مقاله (17.28 M) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22044/jme.2020.9644.1877 | ||
| نویسندگان | ||
| A. Zolfaghari* ؛ N. Barzegar؛ M. Amini | ||
| Department of Earth Sciences, Faculty of Sciences, Shiraz University, Shiraz, Iran | ||
| چکیده | ||
| The gypsum mineralization occurred in the form of Satin Spar and Selenite in the south and southwest of the Fars province in the folded Zagros zone. In this region, Satin Spar mineralization has been formed as stratiform between the red marl and siltstone units of Late Miocene–Pliocene in Agha Jari, Bakhtiari, and the Gachsaran formations. The reserves of Satin Spar in this area are at least 200,000 tons. Satin Spar due to its chatoyancy, has been able to distinguish itself from gypsum. This beautiful light phenomenon (chatoyancy) results from the regular and parallel arrangement of the Satin Spar fibers. The mineral was first identified by its physical properties, and then by the X-ray diffraction analysis. They were also examined by scanning electron microscopy for its structure and also the structure of fiber crystals and their optical properties. In order to examine the polishing condition of Satin Spar, several samples of this gemstone were also selected for fantasy and Cabochon cut. For the first time in Iran, the exploration of Satin Spar gemstone in the Fars region can be a model for its discovery in the other evaporative formations in the country. | ||
| کلیدواژهها | ||
| Satin Spar؛ Chatoyancy؛ Gemstone؛ Zagros Zone؛ Iran | ||
| مراجع | ||
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[1]. MacQillan, H., 1975, Geological compilation map of Kharg - Ganaveh - Kazerun: Tehran, Geological and Exploration Division, No. 30688, 1: 250000, sheet No. 20512.
[2]. Aghanbati, A. (2006). Geology of Iran, Publications of Geological Survey of Iran, p. 586.
[3]. Moore, F., Asadi, S., Fattahi, N. (2011). Geochemistry and Geometry of the Jian Cu deposit (Bavanat), Sanandaj-Sirjan Zone, Northeast of Fars Province, Journal of Advanced Applied Geology, No. 1, p. 80 - 92.
[4]. Wallerius, J.G. (1747). Mineralogia, eller Mineralriket. Stockholm: 50.
[5]. Arthur, Thomas. (2009). Gemstones: New Holland Publishers (UK) Ltd, p. 134, ISBN: 978-1-84773-484-6.
[6]. Michael O’Donoghue. (2006). Gems, Sixth edition, p 378, Elsevier, and ISBN: 978-0-75-065856-0.
[7]. Schumann, Walter. (2001). Gemstones of the world, p 202, Publisher: Robert Hale Ltd. ISBN: 0-7198-0301-2.
[8]. Michael Stevens. (2018). seeing through Selenite, the education YouTube channel Vsauce.
[9]. Shallit.J and Russell.P. )2004(. Department of Earth Sciences, University of Waterloo, Ontario N2L 3G1, Canada.
[10]. Dana, J.D. )1850.( System of Mineralogy, 3rd. Edition, and New York: 217 (as Hayesine), 695.
[11]. Ulrich Henn and Claudio C. Milisenda. )2004(. Gemmological Tables, P. 3, German Gemmological Association, and ISBN: 3-932515-44-7. | ||
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