The Geology of Diamond Deposits
Joanna Lyn Munda March 22, 2013
ES 155 – Section A Dr. R. Claveria
The Geology of Diamond Deposits
I. Abstract
The study aims to discuss in detail the existing methods of mining and harvesting naturally formed diamonds, in order to create a definite and complete overview of the diamond mining process. Each method will be discussed in detail, including the actual act of production and the impact of the mining activity, taking into consideration the scale at which an operation is conducted. The analytical discussion of the two methods concluded in the assessment of suitability for each, depending on the situation, location and scale, as well as economic and environmental factors. Efficiency of mineral collection and respect for the diamonds as a natural resource are both highlighted as criteria. This information would be useful for anyone interested in the market and industry of commercial diamond production, as well as those currently involved.
II. Overview
Introduction
The significance of diamonds is evident worldwide. They are cultural icons, used in jewellery as a gemstone, or in other applications, which make use of the other physical properties of the mineral. Diamonds are not a modern fascination; they have long been used for trading and adornments, beginning in ancient civilizations. Due to their clear, almost transparent, nature and their cleavage, which is a mineral’s tendency to break along a plane as determined by its internal structure, they were even used as talismans and believed to ward off evil spirits (Inmon, 2004).
From being harvested in actual diamond mines, the chain of flow, the diamond pipeline, followed by the minerals goes from dealers to diamond cutters to jeweller manufacturers or other industry end components. This results in a commercial diamond, isolated by mining techniques and processed to fit commercial standards. The global market for diamonds can be measured at two distinct points,
ES 155 – Section A Dr. R. Claveria
The Geology of Diamond Deposits
I. Abstract
The study aims to discuss in detail the existing methods of mining and harvesting naturally formed diamonds, in order to create a definite and complete overview of the diamond mining process. Each method will be discussed in detail, including the actual act of production and the impact of the mining activity, taking into consideration the scale at which an operation is conducted. The analytical discussion of the two methods concluded in the assessment of suitability for each, depending on the situation, location and scale, as well as economic and environmental factors. Efficiency of mineral collection and respect for the diamonds as a natural resource are both highlighted as criteria. This information would be useful for anyone interested in the market and industry of commercial diamond production, as well as those currently involved.
II. Overview
Introduction
The significance of diamonds is evident worldwide. They are cultural icons, used in jewellery as a gemstone, or in other applications, which make use of the other physical properties of the mineral. Diamonds are not a modern fascination; they have long been used for trading and adornments, beginning in ancient civilizations. Due to their clear, almost transparent, nature and their cleavage, which is a mineral’s tendency to break along a plane as determined by its internal structure, they were even used as talismans and believed to ward off evil spirits (Inmon, 2004).
From being harvested in actual diamond mines, the chain of flow, the diamond pipeline, followed by the minerals goes from dealers to diamond cutters to jeweller manufacturers or other industry end components. This results in a commercial diamond, isolated by mining techniques and processed to fit commercial standards. The global market for diamonds can be measured at two distinct points,
References: American Museum of Natural History (AMNH) (2006). The Nature of Diamonds: Alluvial Mining. Retrieved March 16, 2013, from http://www.amnh.org/exhibitions/diamonds/alluvial.html Bergman, S Carnegie Institution for Science (2008, October). Large, Flawless Synthetic Diamonds by Chemical Vapor Deposition (CVD). Retrieved March 14, 2013, from http://geology.com/press-release/synthetic-diamonds/. Clement, C. R., 1982: A comparative geological study of some major kimberlite pipes in the Northern Cape and Orange free state. PhD Thesis, University of Cape Town. Dacey, J. (2010). “Geologists map likely locations of diamonds”. PhysicsWorld. Retrieved March 20, 2013 from http://physicsworld.com/cws/article/news/2010/jul/15/geologists-map-likely-location-of-diamonds. de la Vergne, J. (2003). Hard Rock Miner’s Handbook, Tempe/North Bay: McIntosh Engineering. pp. 4-12. Erlich, E Field, J. E. (1992). 1992). The Properties of Natural and Synthetic Diamond. London: Academic Press. ISBN 0-12-255352-7. Gaskell, S. (2012, January 5). Why are diamonds so valuable?. Retrieved online March 15, 2013, from http://creepytreehouse.wordpress.com/2012/01/05/why-are-diamonds-so-valuable/. Geology of Diamonds (2005). Retrieved March 18, 2013, from http://www.info-diamond.com/rough/geology.html#prettyPhoto. Hays, J. (2009). Looking for Diamonds. Retrieved March 19, 2013, from http://factsanddetails.com/world.php?itemid=1235&catid=51&subcatid=324#. Inmon, J. (2004). Birthstone Myths and Legends. Retrieved March 20, 2013, from http://academic.emporia.edu/abersusa/go340/students/inmon/. International Institute of Environment and Development (IIED) (2006). Artisanal and Small Scale Mining. Retrieved March 21, 2013, from http://www.iied.org/mmsd/mmsd_pdfs/finalreport_13.pdf. King, H. (2007). Interesting Facts and Information About Diamonds. Retrieved March 20, 2013, from http://geology.com/articles/diamond-information/. Koizumi, S., Nebel, C. E., & Nesladek, M. (2008). Physics and Applications of CVD Diamond. Wiley VCH. ISBN 3-527-40801-0. Lerner, K., & Lerner, B. (2003). World of Earth Science. Farmington Hills: MI: The Gale Group, Inc. Lineberry, C Martin, A. (2002). A Man-made Diamond is Forever, Too: Nitty-gritty. Stanford Magazine. Retrieved March 20, 2013, from http://alumni.stanford.edu/get/page/magazine/article/?article_id=30353. Mining Diamonds (n.d.). Retrieved March 16, 2013, from http://www.costellos.com.au/diamonds/mining.html. National Science Foundation (NSF) (2007). Diamonds from Outer Space: Geologists Discover Origin of Earth 's Mysterious Black Diamonds. Retrieved March 8, 2013, from www.nsf.gov/news/news_summ.jsp?cntn_id=108270. Natural Environment Research Council (NERC) (2005). British Geological Survey. Retrieved March 20, 2013, from http://www.bgs.ac.uk/annualreport/2005.html. Olsen, P. (2011). Why Are Diamonds So Valuable?. Retrieved March 13, 2013, from http://www.perryolsen.com/why-are-diamonds-so-valuable.aspx. Pan, L. S., & Kani, D.R. (1995). Diamond: Electronic Properties and Applications. Kluwer Academic Publishers. ISBN 0-7923-9524-7. Pisani, B. (2012). The Business of Diamonds, From Mining to Retail. Retrieved March 21, 2013, from http://finance.yahoo.com/news/business-diamonds-mining-retail-161406713.html. Savage, M Spektorov, Y., Linde, O., & Welli, P. (2012, December). “The Global Diamond Industry: A Portrait of Growth”. The Bain Report. Retrieved March 17, 2013, from http://www.bain.com/publications/articles/global-diamond-industry-portrait-of-growth.aspx. United States Geological Survey (USGS) (2007). What is Alluvial Mining?. Retrieved March 21, 2013 from http://geology.er.usgs.gov/eespteam/diamondproject/alluvialmining.htm. University of Houston (2010). Improving the Odds of Finding Diamonds: UH geologist explains how to target promising areas. Retrieved March 20, 2013, from http://geology.com/press-release/finding-diamonds/. Walker, J. (1979). “Optical Absorption and luminescence in diamond”. Reports on Progress in Physics 42 (10): 1605-1659. Bibcode 1979RPPh...42.1605W. doi:10.1088/0034-4885/42/10/001.. Wang, H. (2011). Basic Properties of Diamonds. Retrieved March 20, 2013, from http://www.diamondbladeselect.com/knowledge/basic-properties-of-diamond/. Williams, G. F. (1904). The diamond mines of South Africa. New York: B. F. Buck & company. p. 199. World Diamond Council (n.d.). Alluvial Diamond Mining Fact Sheet. Retrieved March 20, 2013, fromhttp://www.diamondfacts.org/pdfs/media/media_resources/fact_sheets/Alluvial_Mining_Background.pdf. Zapata, A. (2012). How Are Diamonds Mined?. Retrieved March 19, 2013, from http://www.whiteflash.com/about-diamonds/diamond-education/how-are-diamonds-mined-1185.htm.