TORONTO, ONTARIO -- (Marketwired) -- 06/26/13 -- Nuinsco Resources Limited ("Nuinsco" or the "Company"))(TSX: NWI) (www.nuinsco.ca) today reported that recent work has identified the rare earth mineral ancylite in drill core from the Company's 100%-owned Prairie Lake phosphorus/rare metals project in northwestern Ontario. This discovery is significant due to the fact that ancylite contains higher concentrations of rare earth elements ("REEs") than other minerals containing REEs at Prairie Lake.
"In addition to a high concentration of REEs, the benefits of ancylite are its high specific gravity (approx. 4 gm/cm3) which means that standard, cost-effective dense media concentration can be used and leaching using a proven, safe mild hydrochloric acid solution is a possibility," said Paul Jones, President. "Finding such a highly-concentrated source of REEs that can be easily processed and extracted, in combination with the already recognized significance of phosphorus-bearing apatite and niobium-bearing pyrochlore, enhances the possibilities with regard to Prairie Lake's economic viability."
Ancylite is a strontium-rich REE-carbonate with high concentrations (typically greater than 50wt%) of REOs (Rare Earth Oxides). The ancylite mineralization forms part of a mineral assemblage that includes burbankite (another REE-carbonate mineral), and strontianite (SrCO3). The ancylite was identified in an intersection of ferrocarbonatite in drill hole NP1007 (427.16-429.06m) grading 0.87% REE over 1.9m (see news release issued October 20, 2011). A review of other intersections of ferrocarbonatite at Prairie Lake, for which geochemical assay data are available, has identified another much thicker (approx. 15m) and shallower (160.92-175.85m) zone of potential REE mineralization with REEs averaging greater than 0.6% in DDH NP10-06; the mineralogy of this second zone will form the basis of ongoing mineralogical studies into the REE potential of the Prairie Lake carbonatite complex.
Electron microprobe analyses of the Prairie Lake ancylite, conducted at Carleton University, show REO contents that average 52 +/- 2 wt%, which are comparable to those from other carbonatite-hosted zones of rare earth mineralization around the world. However, it is noteworthy that the Prairie Lake ancylite is enriched in neodymium (critical to the manufacture of permanent magnets) relative to other carbonatite-hosted zones of REE mineralization. Ancylite is the major REE-bearing mineral at the Bear Lodge carbonatite (Wyoming), where a measured and indicated resource of 6.8 million tonnes grading 3.75 wt% REO has been established by Rare Element Resources Ltd.
The results reported here are part of ongoing studies into metallurgy and mineralogy of Prairie Lake carbonatite complex mineralization. Additional test work and concentrate production is being conducted by COREM in Quebec City and will aim to optimize mineral liberation, improve apatite flotation technology and upgrade the apatite flotation concentrate. This work is part of ongoing evaluation of the project that also includes studies to develop a resource from the existing 515-630 million tonne Exploration Target Mineralization Inventory ("ETMI") (produced in 2011), development of the opportunity for niobium concentrate production and identification of commercial markets for Prairie Lake phosphorus mineralization including fertilizers and detergents which are the number one and two end-use markets for phosphates worldwide according to Global Industry Analysts, Inc. in its recently published report titled "Phosphates: A Global Strategic Business Report."
Most Popular Stories
- Adam Levine Wins Big as 'The Voice' Crowns Champ
- 'Beyonce' Tops the U.S. Album Chart
- Archer Daniels Midland Moving HQ to Chicago
- Contest Gives Startups a Jump in Jersey
- Singer Ian Watkins Sentenced to 35 Years Prison for Child Sex Abuse
- The Illuminati Don't Exist, Just Ask Them
- Universal CityWalk Rings in 2014 with Southern California's Biggest New Year's Eve Party, Featuring Dazzling Fireworks Displays, Three Live Concert Stages, DJ Performances and a Midnight Cascade of 1,000 Pounds of Confetti
- SAC Capital Employee Guilty of Insider Trading
- Senate Sends Bipartisan Budget Plan to President
- Fed Signals Strong Confidence in U.S. Economy