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Latest Crystallography Stories

Big Molecule Models Captured In A Flash
2013-05-28 11:02:32

Lawrence Berkeley National Laboratory To learn how biological molecules like proteins function, scientists must first understand their structures. Almost as important is understanding how the structures change, as molecules in the native state do their jobs. Existing methods for solving structure largely depend on crystallized molecules, and the shapes of more than 80,000 proteins in a static state have been solved this way. The majority of the two million proteins in the human body...

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...

2013-05-02 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....

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...


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_acf3a79763725412768c5ca1b9da5c84
2005-05-26 12:12:27

Aurichalcite is a mineral, usually found as a secondary mineral in copper and zinc deposits. Its chemical formula is (Zn,Cu)5(CO3)2(OH)6. The name probably originates from the Greek oreichalchos meaning "mountain copper".

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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Word of the Day
cock-a-hoop
  • Exultant; jubilant; triumphant; on the high horse.
  • Tipsy; slightly intoxicated.
This word may come from the phrase 'to set cock on hoop,' or 'to drink festively.' Its origin otherwise is unclear. A theory, according to the Word Detective, is that it's a 'transliteration of the French phrase 'coq a huppe,' meaning a rooster displaying its crest ('huppe') in a pose of proud defiance.' Therefore, 'cock-a-hoop' would 'liken a drunken man to a boastful and aggressive rooster.'
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