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Latest Crystallography Stories

New research Shows 'Perfect Twin Boundaries' Are Not So Perfect
2013-05-20 10:55:02

University of Vermont One of the basic principles of nanotechnology is that when you make things extremely small–one nanometer is about five atoms wide, 100,000 times smaller than the diameter of a human hair–they are going to become more perfect. "Perfect in the sense that their arrangement of atoms in the real world will become more like an idealized model," says University of Vermont engineer Frederic Sansoz, "with smaller crystals–in for example, gold or...

Tiny Test Tube Crystal Flowers
2013-05-17 08:31:39

April Flowers for redOrbit.com - Your Universe Online With spring come thoughts of green growing plants and beautiful flowers — Mother Nature showing off her finest. Wim L. Noorduin, a postdoctoral fellow at the Harvard School of Engineering and Applied Sciences (SEAS), has been showing off his finest as well, growing delicate flower structures on the scale of microns in a beaker full of chemical fluid. Noorduin´s miniscule sculptures are curved and delicate, not resembling...

2013-05-08 08:24:34

Symbol:-TSX-V:NAAOTCQX:SIOCF VANCOUVER, May 8, 2013 /PRNewswire/ - SIERRA IRON ORE CORP (the "Company") is pleased to announce the results of assays of samples taken and sent for laboratory testing. Two of the samples yielded greater than 55% Fe content. The 3(rd) sample from the Mazomique property requires further testing. % Fe %S Brasiles 55.21 0.79 El Creston 55.88 0.35 The assays were carried out at...

2013-05-02 23:28:16

New experiments for TEM enabled by precession electron diffraction - high precision nanoscale strain mapping - high spatial resolution phase and orientation mapping - crystal structure characterization Tempe, AZ (PRWEB) May 02, 2013 Topspin is the result of a strategic partnership combining innovative application development by AppFive and advanced tools for electron diffraction from NanoMEGAS. Topspin allows scientists to get more and better nanoscale information with unprecedented...

2013-05-02 23:27:52

Canadian association management company selected to provide professional business services to the International Society for Biological and Environmental Repositories. Vancouver, British Columbia (PRWEB) May 02, 2013 The International Society for Biological and Environmental Repositories (ISBER) is pleased to announce it has chosen to become an independent organization as of June 1, 2013, and has selected Malachite Management Inc. as its full-service association management company....

2013-04-26 12:22:22

STAMFORD, Conn., April 26, 2013 /PRNewswire/ -- Tronox Limited (NYSE: TROX) today announced that it has appointed Minelco Asia Pacific Ltd., as its primary distributor for zircon in the People's Republic of China. (Logo: http://photos.prnewswire.com/prnh/20051118/TRONOXLOGO-a) "China is the world's largest market for zircon ore, an essential ingredient in the production of ceramics and tiles. Through this new partnership with Minelco, we hope to expand our customer base by utilizing...

2013-04-18 08:24:46

TORONTO, April 18, 2013 /CNW/ - Mandalay Resources Corporation ("Mandalay" or the "Company") (TSX: MND) announced today its production and sales results for the first quarter, 2013. Brad Mills, Chief Executive Officer of Mandalay, commented: "Mandalay's production and sales for the first quarter were in line with our expectations. Costerfield delivered another strong performance, continuing the trend of improvement of the last few quarters by achieving record gold production and...

2013-04-04 08:23:49

DUBLIN, Ireland, April 4, 2013 /PRNewswire/ -- Research and Markets [http://www.researchandmarkets.com/research/r9867m/gypsum_market ] has announced the addition of the "Gypsum Market Review" [http://www.researchandmarkets.com/research/r9867m/gypsum_market ] report to their offering. (Logo: http://photos.prnewswire.com/prnh/20130307/600769 ) The Gypsum Market Review is an essential resource for anyone interested in detailed information on the reviewed market....

Tiny Grain Can Help Reveal The History Of A Rock
2013-03-25 10:27:34

AlphaGalileo Foundation Researchers can use the mineral rutile to learn about rock types and their history. Two articles published in the highly respected journal “Geology” now present a new application of a method for more easily tracing the mineral rutile. The co-authors of the articles are researchers at the University of Gothenburg. Rutile is used in ceramics and paints, but is particularly useful for finding out about the history of a rock. Where mineral deposits are...

Research Shows Possibilities For Quasicrystals
2013-03-20 08:56:27

Syracuse University Ever since their discovery in 1984, the burgeoning area of research looking at quasiperiodic structures has revealed astonishing opportunities in a number of areas of fundamental and applied research, including applications in lasing and sensing. Quasiperiodic structures, or quasicrystals, because of their unique ordering of atoms and a lack of periodicity, possess remarkable crystallographic, physical and optical properties not present in regular crystals. In the...


Latest Crystallography Reference Libraries

28_9de5c05320ccdc491872fa501c117601
2005-05-26 12:19:41

Amphibole defines an important group of dark-colored rock-forming inosilicate minerals composed of double chain SiO4 tetrahedra linked at the vertices and generally containing ions of iron and/ or magnesium in their structures. In chemical composition and general characteristics they are very similar to the pyroxenes and, like them, fall into three series according to their system of crystallization. The chief difference between amphiboles and pyroxenes is in cleavage: amphiboles form oblique...

28_3f12abda63415a07ee5b6c5d30ef8239
2005-05-26 12:17:18

Aragonite is a polymorph of the mineral calcite, both having the chemical composition CaCO3. Its structure differs from calcite and leads to a different crystal shape, an orthorhombic system with acicular crystals. By repeated twinning pseudo-hexagonal forms result. It may be columnar or fibrous, occasionally in branching stalactitic forms called flos-ferri (flowers of iron) from their association with the ores at the Carthinian iron mines. The type location for aragonite is Molina de...

28_8002f27f8f96dedfc5d591fb18ec14b5
2005-05-26 09:41:33

The mineral kyanite is an aluminium silicate of the sillimanite group (along with andalusite and sillimanite), also called alumino-silicate. It has the formula Al2O3·SiO2 (Al2SiO5). Its hardness varies widely depending on its crystallographic direction, from 5 to 7.5, and it has a specific gravity of 3.56-3.67. It is translucent, usually blue, but possibly white, gray, green, or black. It is usually found in long-bladed crystals or columnar to fibrous structures. Kyanite is used in...

28_2e75b7b4202fc44cb88f662db2bba1fc
2005-05-26 09:37:09

Limonite Limonite is a ferric hydrate of varying composition, the generic formula is frequently written as FeO(OH)·nH2O, although this is not entirely accurate as Limonite often contains a varying amount of oxide compared to hydroxide. Together with hematite, it is mined as ore for the production of iron. Limonite is heavy and yellowish-brown. It is not a true mineral, however, but a mixture of similar hydrated iron oxide minerals, mostly Goethite. Limonite forms mostly in or near...

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