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Latest Crystallography Stories

2015-05-21 23:08:03

Attorneys providing representation for a St. Louis talcum powder lawsuit for the Onder Law Firm announce the appointment of a Special Master. St.

2015-05-20 16:28:47

DENVER, Pa., May. 20, 2015 /PRNewswire-iReach/ -- USA Gypsum held its Executive Tour and Ribbon-Cutting Ceremony on Friday, April 17, 2015.

2015-05-15 23:01:44

DeepResearchReports.com adds 2015 Global Ulexite Industry Research Report to its database.

cryo-electron microscope
2015-05-12 15:51:03

This is one powerful microscope, and scientists believe that it could usher in a new era in imaging proteins.

2015-05-07 23:08:28

Attorneys representing women and families in St.

2015-04-30 23:09:51

Cubic’s realistic and immersive military readiness solutions to be displayed for the first time at IDEF SAN DIEGO, Calif.

2015-04-30 16:31:29

VANCOUVER, April 30, 2015 /PRNewswire/ - Nevsun Resources Ltd. (TSX:NSU)(NYSE MKT:NSU) (Nevsun or the Company) is pleased

2015-04-29 23:09:31

The Onder Law Firm, a nationally-respected product safety litigation law firm, offers new information on their recent lawsuit alleging a link between ovarian cancer and talcum powder.

bulletproof clay
2015-04-27 08:34:23

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).


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
friseur
  • A hairdresser.
The word 'friseur' comes from French friseur, from friser ("to curl, frizz").
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