Latest Crystallography Stories
Book Two in The Chalcedony Chronicles is a Fast-Paced Time Traveling Adventure WORTHINGTON, Ohio, Aug. 28, 2014 /PRNewswire-iReach/ -- B.
The Liquidation Channel announces their first ever Emerald Smackdown. Austin, Texas (PRWEB) August 20, 2014 The Liquidation Channel is thrilled to announce
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.
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,
Web Site: www.CuMtn.comTSX: CUM This release should be read with the unaudited
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
Preliminary Highlights of the Upcoming International Union of Crystallography (IUCr) Meeting in Montreal, August 5 - 12, 2014 WASHINGTON, July 28, 2014 /PRNewswire-USNewswire/ -- Some
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.
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
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.
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...
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...
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".
The mineral kyanite is an aluminium silicate of the sillimanite group (along with andalusite and sillimanite), also called alumino-silicate. It has the formula Al2O3Â·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...
Limonite Limonite is a ferric hydrate of varying composition, the generic formula is frequently written as FeO(OH)Â·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...
- A young chicken: also used as a pet name for children.