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Latest Crystallography Stories

2014-08-28 12:26:49

Book Two in The Chalcedony Chronicles is a Fast-Paced Time Traveling Adventure WORTHINGTON, Ohio, Aug. 28, 2014 /PRNewswire-iReach/ -- B. Kristin McMichael, the best-selling teen fiction author of The Blue Eyes Trilogy and To Stand Beside Her, is pleased to announce the paperback release of her latest novel, "Chrysoprase". Chrysoprase is Book Two in "The Chalcedony Chronicles", and picks up immediately where the first book, "Carnelian", leaves off. Photo -...

2014-08-20 23:11:35

The Liquidation Channel announces their first ever Emerald Smackdown. Austin, Texas (PRWEB) August 20, 2014 The Liquidation Channel is thrilled to announce the first ever Emerald Smackdown in company history. The event starting on Saturday, August 23 from 9 a.m. to 12 a.m. will feature one of the most beautiful and sought after gemstones in the world. The 15-hour event will showcase some of the most stunning Zambian, Columbian, and Brazilian emeralds on the market. Kagem Zambian emeralds...

2014-08-14 20:21:20

The Company completes construction of the facilities for stage one of Phase II expansion at Jiama. The Company reduces total and cash production costs at both mines. VANCOUVER, Aug. 14, 2014 /CNW/ - China Gold International Resources Corp. Ltd. (TSX: CGG; HKEx: 2099) (the "Company" or "China Gold International Resources") reports financial and operational results for the three months ("Q2", "quarter" or "second quarter 2014") and six months ("first half" or "six months 2014") ended June 30,...

2014-08-13 23:09:33

TZ Minerals International (TZMI) is pleased to announce the release of its latest data publication on the zircon sector: Zircon Trade Matrix (PRWEB) August 13, 2014 TZ Minerals International (TZMI) is pleased to announce the release of its latest data publication on the zircon sector: Zircon Trade Matrix. This publication (released August 2014) focuses on the 2013 calendar year and is the 15th annual update of TZMI's analysis of global trade in zircon products. The format of the...

2014-08-11 04:20:49

Web Site: www.CuMtn.comTSX: CUM This release should be read with the unaudited financial statements and management's discussion and analysis available at www.cumtn.com and filed on www.sedar.com. Our financial results are prepared in accordance with IFRS and expressed in Canadian dollars, unless otherwise noted. Sales and production volumes for the Company's 75%-owned Copper Mountain mine are presented on a 100% basis unless...

2014-08-05 23:12:48

August is Peridot month, and the LC is celebrating by showcasing their best Hebei Peridot gemstones all month long. Austin, Texas (PRWEB) August 05, 2014 Peridot is the official birthstone of August, and LC is excited to announce that they will be showcasing their best Peridot collection all month long, starting with a Hebei Peridot Day TV event, beginning Wednesday, August 5 from 12 a.m. to 11:59 p.m. CT. Known for its distinctive green color, peridot has been mined for over 3,500 years...

2014-07-28 16:26:23

Preliminary Highlights of the Upcoming International Union of Crystallography (IUCr) Meeting in Montreal, August 5 - 12, 2014 WASHINGTON, July 28, 2014 /PRNewswire-USNewswire/ -- Some 2,500 scientists and experts from around the world will gather next month in Montreal for the largest international meeting of the year devoted to crystallography -- a discipline that draws researchers from fields as far flung as genomics and geology who help solve problems as diverse as designing new...

International Science Team Solves Long-standing Mystery In Biology
2014-07-14 03:20:16

University of Leicester An international team of researchers, led by the University of Leicester, has solved a long-standing mystery in biology, by identifying the molecular structure of a vital biological chemical. The debate – which has raged within the scientific community for years – boils down to something as simple as a hydrogen atom: is it there, or is it not? The controversy centers around a form of enzyme called a heme (or haem, as in haemoglobin) at the center of which is...

2014-07-10 08:22:32

TORONTO, July 10, 2014 /CNW/ - Mandalay Resources Corporation ("Mandalay" or the "Company") (TSX: MND) announced today its production and sales results for the second quarter, 2014. Brad Mills, Chief Executive Officer of Mandalay, commented: "Mandalay's operations delivered steady operational performance in the second quarter. Cerro Bayo operations achieved a rate of 1,350 tonnes per day ("tpd") of ore production in June, just short of its targeted expansion rate of 1,400 tpd....

Consider The ‘Anticrystal’
2014-07-08 03:20:56

University of Pennsylvania For the last century, the concept of crystals has been a mainstay of solid-state physics. Crystals are paragons of order; crystalline materials are defined by the repeating patterns their constituent atoms and molecules make. Now physicists at the University of Pennsylvania and the University of Chicago have evidence that a new concept should undergird our understanding of most materials: the anticrystal, a theoretical solid that is completely disordered....


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
abrosia
  • Wasting away as a result of abstinence from food.
The word 'abrosia' comes from a Greek roots meaning 'not' and 'eating'.