Latest Crystallography Stories
The R&D folks at the US Naval Research Laboratory have once again done their best MacGyver impression, creating something impossibly cool and useful (a new type of bulletproof glass) from seemingly mundane source materials (synthetic powdered clay).
The lawyers handling talcum powder lawsuits at the Onder Law Firm announce a news update including the scheduling of a jury trial in their St.
Advancements have been made in talcum powder lawsuit in St. Louis, according to talcum powder attorneys at the Onder Law Firm. St.
NASA’s Curiosity rover has discovered two-tone mineral veins on a layered mountain which provides new clues of multiple fluid movement episodes on Mars, including some that occurred later than the wet conditions that formed after lake-bed deposits at its base.
NEW YORK, April 1, 2015 /PRNewswire/ -- Aria Gems, an American-Afghan company, has become the largest company to legally export Panjshir
Combining CIRCE’s predictive software for polymorph and cocrystal forms with Freeslate’s high throughput automated systems will facilitate solutions for difficult solid state challenges
Sapphire Ultimate March Mayhem Viewing Party is an event basketball fans must experience. Las Vegas, Nevada (PRWEB) March 05, 2015 Ready for the Ultimate
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...
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