Latest Crystallography Stories
A new METTLER TOLEDO on-demand webinar explores recent research that could revolutionize pharmaceutical production.
VANCOUVER, March 26, 2014 /PRNewswire/ - Sierra Metals Inc.
University of Calgary-led research is first of its kind, uncovering the origin of oilsands sediment
Protein Crystallization Market research report categorizes the protein crystallization and crystallography market on the basis of technology, products, and end users.
DALLAS, February 13, 2014 /PRNewswire/ -- The "Protein Crystallization & Crystallography Market by Technology (Ion-Exchange Chromatography, HPLC, Gel-Electrophoresis,
A large selection of multiple stone mill units for food processing and grinding are available through Wohl Associates, Inc., experts in the food production machinery industry. Bohemia,
NEW YORK, Jan. 17, 2014 /PRNewswire/ -- Pomerantz LLP has filed a class action lawsuit against Turquoise Hill Resources, Ltd.
TORONTO, Jan. 16, 2014 /CNW/ - Excellon Resources Inc.
Jewelry lovers are falling for radiant orchid, Pantone’s 2014 color of the year. New York, New York (PRWEB) January 15, 2014 Move over emerald, radiant
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...
- Withering but not falling off, as a blossom that persists on a twig after flowering.