selenium-bearing

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• Penroseite — Infobox mineral name = Penroseite Category = boxwidth = boxbgcolor = imagesize = caption = formula = ((Ni,Co,Cu)Se2) molweight = color = steel grey system = isometric class 2/m3* cleavage = None fracture = Conchoidal mohs = 3 lower in impure… …   Wikipedia

• Helm Canal — The Helm Canal (Latitude: 36.877N; Longitude: 119.734W) is a man made waterway for conveyance of water in Clovis, California, USA. [ [http://www.topozone.com/map.asp?lon= 119.734 lat=36.8297 Map showing the Helm Canal in Clovis, California] ] ]… …   Wikipedia

• Cadmoselite — is a cadmium selenium bearing mineral. Its chemical formula is CdSe.ee also* Cadmium selenideReferencesEmsley, John. Nature s Building Blocks. Oxford, 2001. ISBN 0 19 850341 5 …   Wikipedia

• thallium — /thal ee euhm/, n. Chem. a soft, malleable, rare, bluish white metallic element: used in the manufacture of alloys and, in the form of its salts, in rodenticides. Symbol: Tl; at. wt.: 204.37; at. no.: 81; sp. gr.: 11.85 at 20°C. [1860 65; < NL,… …   Universalium

• printing — /prin ting/, n. 1. the art, process, or business of producing books, newspapers, etc., by impression from movable types, plates, etc. 2. the act of a person or thing that prints. 3. words, symbols, etc., in printed form. 4. printed material. 5.… …   Universalium

• Chalcogen — Group 16 Period 2 8 O 3 …   Wikipedia

• Health and Disease — ▪ 2009 Introduction Food and Drug Safety.       In 2008 the contamination of infant formula and related dairy products with melamine in China led to widespread health problems in children, including urinary problems and possible renal tube… …   Universalium

• Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

• Boletus edulis — Boletus edulis …   Wikipedia

• Fly ash — Photomicrograph made with a Scanning Electron Microscope (SEM): Fly ash particles at 2,000x magnification Fly ash is one of the residues generated in combustion, and comprises the fine particles that rise with the flue gases. Ash which does not… …   Wikipedia

• chemical element — Introduction also called  element,         any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed.       This article considers the… …   Universalium