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Topic: Williamson diamond mine

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	Williamson diamond mine - Wikipedia, the free encyclopedia
		The mine was established in 1940 by Dr. John Williamson, a Canadian geologist, and has been continuous operation since then, making it one of the oldest continuously operating diamond mines in the world.
		Diamond mining operations at the Williamson diamond mine are composed of four distinct activities: mining of the pit, re-treatment of tailings to recover missed diamonds, and gravel mining both on the property and adjacent to the property where gravel has been alluvially deposited.
		Williamson was hired by one of these operations, the Mabuki diamond mine, in 1938 and used it as his base for diamond prospecting in the region.
	en.wikipedia.org /wiki/Williamson_diamond_mine (911 words)

	John Thoburn Williamson. The Diamond Seeker: Mwadui (Site not responding. Last check: 2007-10-21)
		Williamson held it up to the sun and immediately saw that it was a green diamond.
		He had found the largest diamond mine ever, the oval-shaped volcanic pipe which was filled with diamondiferous ore covered some 361 acres on the surface; more than four times larger than any of the diamond pipes found in South Africa.
		Williamson Diamonds Limited was bought 50/50 by De Beers and the Tanganyika Government on the 13th August 1958.
	www.hamstat.demon.co.uk /Mwadui/Index_m.htm (967 words)

	Mining Runescape Data Mining Technique (Site not responding. Last check: 2007-10-21)
		The mine is majority owned and operated by the Rio Tinto Group, which also owns the Argyle diamond mine in Australia and the Diavik Diamond Mine in Canada.
		Williamson diamond mine - The Williamson Diamond Mine (also known as the Mwadui mine) is a famous diamond mine in Tanzania; it became well known as the first significant diamond mine outside of South Africa.
		Camborne School of Mines - The Camborne School of Mines is a department the School of Geography, Archaeology, and Earth Resources in the University of Exeter in Cornwall, in Tremough, Cornwall.
	www.delmicro.com /miningrunescape.html (314 words)

	Australia Diamond Mines \| Argyle Diamond Mine
		The Argyle diamond mine is located in the Kimberley region in the Australian state of Western Australia.
		The Argyle mine is the first commercial diamond mine dug along a olivine lamproite volcanic pipe rather than a kimberlite pipe.
		The mine produces 80% brown diamonds, 16% yellow diamonds, 2% white diamonds, and the remaining 1% are pink or green.
	www.khulsey.com /jewelry/kh_jewelry_diamond_mines_australia.html (639 words)

	The Rise and Fall of Diamonds
		Williamson was a rugged Canadian geologist who, after he left the employ of De Beers in 1932, began prospecting on his own for diamonds in what is now Tanzania.
		Williamson had to sell the low as well as high quality diamonds he mined to diamond cutters in order for his mine to be profitable.
		As he established it, one of the cardinal principles behind the diamond invention was that demand for diamonds was fixed each year and varied only with the number of engagements.
	www.24carat.co.uk /theriseandfallofdiamondsedwardjayepstein10.html (1605 words)

	Bryson Burke Diamond Corporation: Diamond Exploration and Mining in Canada
		John Williamson was born at Montfort, Quebec in 1907, the son of a lumberjack of Irish descent.
		The famous Williamson Pink (54.5 carat rough) was found on the surface in 1947 by the children of some mine workers at the Williamson Diamonds Mine, Mwadui, Tanzania.
		Dr Williamson gave the priceless cut Pink round [23.6 carat] to the then Princess Elizabeth as the centrepiece of a brooch for her forthcoming wedding to Prince Phillip.
	brysonburke.com /people_williamson.html (1331 words)

	African roundup
		The mining sector contributes 2.3 per cent of GDP, which is projected to grow to 10 per cent in 2025, according to the Development Vision 2025.
		The Mining Act of 1998 under which large and small-scale operations are regulated provides guidelines for issuing reconnaissance license for one year and renewals for a period not exceeding a year after paying a fee of $250, annual rent of $10 per square kilometre and renewal fees of $200.
		The mining license can only be granted to the holder of a prospecting license over the area for a period of 25 years or the life of the mine and renewable for a period not exceeding 15 years.
	www.minesandcommunities.org /Action/press1126.htm (2148 words)

	Williamson Diamonds to exploit new deposits
		Williamson Diamond Ltd (WDL), in which De Beers owns 75 percent stakes, while the government of Tanzania holds 25 percent, operates the open cast cavity, digging out the largest diamond-bearing kimberlite pipe in the world.
		For the past 65 years, diamond mining has concentrated on the northeastern shallow side of the volcanic depression, an activity, which is said by the management to have contributed about USD3billion to the Tanzanian economy over the years.
		Diamond recovery peaked in 1966 when 3.3 million tonnes were processed, resulting in the upturn of 924,984 carats, but this figure declined to 40,847 carats in 1993 after nationalization.
	www.ippmedia.com /ipp/financial/2006/03/15/62075.html (406 words)

	[No title]
		A greenish-yellow to yellow-green diamond of a sufficiently pronounced hue to be an asset.
		Diamond is highest on the scale of hardness and, despite it rather easily developed octahedral cleavage, it is among the toughest of gemstones.
		In diamond fashioning, it is used to include both lapping, or blocking, and brillianteering, as well as the production of any facet; the final operation in fashioning a diamond, usually done with diamond powder on a horizontal disc, or lap, against which the diamond is held in a dop.
	www.diamondknowledge.com /glossary.php?letter=ALL (5807 words)

	CSRwire.com - Press Release from De Beers Group: De Beers to Help Reduce Poverty Among Alluvial Diamond Miners
		De Beers is the largest diamond mining company in the world today, producing over 40% of the world’s global gem diamonds from our mines in Africa, as well as sorting and selling the majority of the world’s rough diamonds.
		The majority of informal diamond mining that takes place in these countries is defined as ‘informal’ because it is undertaken on land which is neither licensed nor regulated for the mining activities taking place.
		Diamonds are not the only minerals mined artisanally, gold and cobalt are among other minerals which are also mined this way.
	www.csrwire.com /PressRelease.php?id=6398 (948 words)

	PAWSS \| Conflict Topics - Conflict Diamonds
		Diamonds from countries such as Sierra Leone, Angola, Liberia and the Democratic Republic of the Congo (DRC) have been used to fund combatants, both rebel and government, whose main targets are often civilians.
		The World Diamond Council was formed in 2000 as a response to conflict diamonds and represents the industry as a whole.
		The Diamond High Council (HRD) represents the Belgium diamond industry, which is important because Antwerp is the key transit point for the majority of the rough diamonds in the world.
	pawss.hampshire.edu /topics/conflictdiamonds (1235 words)

	Books
		From the absorbing background of Diamonds Unlimited emerges the first full-length portrait of Dr. Williamson, the eccentric individualist who was potentially one of the world's richest men and yet an oddly simple, unpredictable and perverse personality.
		John Williamson, a Canadian graduated brilliantly in Geology from McGill University in Montreal, obtaining a B.A., M.Sc., and Ph.D. all in the space of four years.
		THE DIAMOND SEEKER is the story of Williamson's supreme dedication and courage that at times kept him just one step ahead of despair in the face of almost insurmountable odds until success beyond all measure at last crowned his efforts.
	www.asbc32.dsl.pipex.com /MwaduiBooks.htm (566 words)

	Minerals Engineering International - Plant Operation News: Africa
		The mine, located south of Lake Victoria has been operating for over 60 years, with the management of the mine currently performed by diamond mining giant De Beers.
		Williamson had heard that Debtech and Gekko Systems had been successfully performing trials, using the InLine Pressure Jig for shell removal on the marine vessels and identified the possibility of using the Jigs on their tailings material.
		The Jig was installed in July last year at Williamson and a series of tests were completed on the viability of recovering diamonds from the tailings.
	www.min-eng.com /ops/af/25.html (676 words)

	Chapter Notes
		While the Diamond Trading Company was extremely cooperative in showing me through their headquarters in London and explaining the sorting and distribution procedures, I did not have an opportunity to interview a number of key executives there, including Monty Charles.
		There were no synthetic diamonds in those days, and the only source for many important types of diamonds were the mines and fields in the British Empire under the control of the diamond cartel.
		The International Diamond Annual, a review of the world's diamond industry and trade, published by De Beers in two volumes in 1971 and 1972, furnishes a comprehensive picture of a diamond pipeline from the diamond mines to the cutting center to the retail business.
	www.edwardjayepstein.com /diamond/endnote_print.htm (4328 words)

	Exploration Diamond
		Diamond exploration project interests and properties in the northeastern area of Western Australia; diamond exploration properties in the northern area of South Australia.
		Caledonia Mining Corporation operates mineral properties for the purpose of producing metals and is engaged in the acquisition, exploration and development of other mineral properties for the exploitation of base and precious metals.
		KWG and Spider are conducting diamond exploration activities in the Wawa area of northern Ontario and are recovering diamonds from large samples and..
	www.goldmood.com /explorationdiamond.html (2436 words)

	Mwadui: Williamson Diamonds Mine.
		The famous Williamson Pink (54.5 carat rough) [ 142 carat's = 1imperial oz] was found on the surface in 1947 by some fl boys here at the Williamson Diamonds Mine, Mwadui, Tanzania.
		Dr Williamson died of throat cancer in January 1958, and was buried in Mwadu.
		The Mine was taken over by his brother Percy B Williamson and Mr I C Chopra the Asian Lawyer who financed his early days prospecting.
	www.hamstat.demon.co.uk /Mwadui/Mwadui.htm (1034 words)

	[No title] (Site not responding. Last check: 2007-10-21)
		Beneficiation is part of the process of ensuring that not only are the diamonds produced by the mines ‘forever’ but that the benefits flowing from them are also ‘forever’ for the countries of their origin.
		In Botswana, mining leases last for 25 years and late last year the renewal of the Jwaneng lease was negotiated with the Government on mutually satisfactory terms.
		In the diamond industry that will include looking at every aspect of their business from prospecting, to mining, the cutting and polishing to see that they are doing all in their power to assure that the benefits last forever — I am proud that De Beers passes this test.
	www.tacyltd.com /Research_Materials_Full.asp?id=54790 (2212 words)

	Crater of Diamonds: History of diamonds, diamond mining in Arkansas
		People first began to suspect that diamonds might occur just outside of the quiet town of Murfreesboro, Arkansas, when the precious stones were found in the peridotite soil of Kimberly, South Africa.
		The approximate location of Huddleston's first diamond find is designated on the diamond field by a historical marker on the south central mine boundary.
		The land was leased from the Millars and opened in 1951 as the Diamond Preserve of the United States.
	www.craterofdiamondsstatepark.com /history (1153 words)

	International Spotlight: Tanzania
		The mining sector achieved a growth rate of 17 percent on average between 1997 and 1999 and the government is aiming for it to contribute 10 percent of GDP by 2025.
		Their protests have gone beyond words and many of the mines have suffered from claim invasions, but the fiercest area of conflict currently comes from a tanzanite mine close to Arusha in the north of the country.
		Such dynamic growth throughout the mining sector is providing an impetus for change in the rest of the economy, as the heavy power requirement of mines is adding pressure to reform of the energy sector.
	www.washingtonpost.com /wp-adv/specialsales/spotlight/tanzania/ore.html (690 words)

	Tanzania Mining (Site not responding. Last check: 2007-10-21)
		There are several large gold mining projects that are already existent or will be coming on stream in the next few years.
		The mine is expected to produce 450,000 ounces a year for a 15-year period.
		The mine has an estimated life span of 10 years and is expected to produce 170,000 ounces a year.
	www.sadcreview.com /country_profiles/tanzania/tan_mining.htm (690 words)

	Auto Mining Runescape Biw Data Logistics Management System (Site not responding. Last check: 2007-10-21)
		Mining accident - A mining accident is a dangerous and often deadly accident that occurs in the process of mining minerals from underneath the surface of the earth.
		Thousand of miners die from mining accidents each year, especially in the process of coal mining and hard rock mining.
		These mines Distance mines usually ensures quicker deliver times, problem was stored in the login name is cut.
	www.delmicro.com /autominingrunescape.html (361 words)

	New Page 1
		This increase is due to operation of the new gold mines namely Golden Pride, Kahama Gold Mine and Geita Gold Mine.
		Diamond export rose from US$ 29.0 million in 1981 to US$ 45.0 million in 2000 mainly from the Williamson Diamond Mine, Small Scale producers and dealers.
		Privatization of the Williamson Diamonds Mine, which resulted in new investments in plant and machinery has greatly contributed to increase in exports.
	www.chamberofmines.com /Mineral_exports.htm (140 words)

	www.mineweb.net \| co_releases Dwyka Diamonds (Site not responding. Last check: 2007-10-21)
		The pipe is comprised mainly of diatreme zone kimberlite and lies near a failed rift on a favourable (for diamond preservation) cratonic geotherm of less than 40 mW/m2.
		Limited drill core sampling (53 tonnes) by De Beers returned a diamond grade of approximately 8 cpht; which compares favourably with the grade being mined economically at the Williamson mine.
		However, interpretation of microdiamond results suggest that a macro grade in the region of 8 cpht may be possible, again well in line with the grades being mined economically at De Beers' Williamson Mine.
	www.mineweb.net /co_releases/510033.htm (923 words)

	An MBendi Profile - Organisation: De Beers Investments
		De Beers Investments is a South African diamond mining, holding and financial company.
		The company operates several South African diamond mines owned or leased by De Beers.
		De Beers manages 18 mines in four countries and is responsible, with its partners De Beers Marine, Namdeb in Namibia and Debswana in Botswana, for more than 50% of world gem diamond production.
	www.mbendi.co.za /codb.htm (422 words)

	Liner Notes from "Not Your Typical New Yorker"
		In all honesty, I thought, "who is this guy?; another pianist trying to make it in an ocean already overflowing with starving musicians?" Let's face it, as the saying goes: if I had a dollar for every cassette or CD I've gotten from musicians aspiring to be acclaimed, I'd be rich.
		Here he was Joseph Diamond, the man from Liberty, New York without an ounce of Latin blood in his veins playing the music I love with such verve.
		These 11 tracks are his original compositions that sizzle, mesmerize and dazzle but most of all Joseph Diamond's music is a must-have for your collection.
	www.josephdiamond.com /linernotes.html (1318 words)

	Diamonds.net News - Douglas Lake Picks-up Diamond Concession in Tanzania
		Tanzania meets the Indian Ocean on its eastern edge, and shares land borders with Kenya (to the north,) Mozambique (to the south,) and Zambia and the Democratic Republic of the Congo to its west.
		Mgambe Diamond mine is located near a De Beers and Tanzania (federal) joint venture at the Williamson Mine.
		This is primarily because shareholder dilution is minimized as exploration risks and costs are largely borne by joint-venture partners," Sangha said.
	www.diamonds.net /news/NewsItem.aspx?ArticleID=15803 (394 words)

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