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Latest Crystallography Stories

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

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.

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

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

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.

2014-07-02 23:05:23

July is ruby month and the LC is celebrating by showcasing their best rubies. Austin, TX (PRWEB) July 02, 2014 The

2014-06-30 08:24:12

The Ophir Sapphire is included in the sale of a larger collection of gemstones that has been awarded nine Guinness World Records titles ATLANTA, June 30, 2014 /PRNewswire/ -- Ophir

2014-06-21 23:03:09

Containing the world's largest gemstones, the Ophir Collection (http://www.OphirCollection.com), owned by Ophir Collection LLC,

2014-06-10 23:16:34

The video is presented by Coast 2 Coast Video Distribution. Toronto, ON (PRWEB) June 10, 2014 Coast 2 Coast Mixtapes announces the release of the

2014-06-06 23:07:38

Rissa Cassandra enchants her readers with ‘Sapphire’s Glow’. VICTORIA, Australia (PRWEB) June 06, 2014 An exciting tale of

2014-06-05 23:06:33

The fourth annual Midwest Soil Improvement Symposium is scheduled for August 13, 2014 in Manhattan, KS.

2014-06-04 16:21:57

NEW YORK, June 4, 2014 /PRNewswire/ -- American Securities LLC, a leading U.S.


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
swell-mobsman
  • A member of the swell-mob; a genteelly clad pickpocket. Sometimes mobsman.
Use of the word 'swell-mobsman' dates at least to the early 1800s.