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A Dictionary of Biology

The Columbia Encyclopedia, Sixth Edition

apatite

apatite , mineral, a phosphate of calcium containing chlorine or fluorine, or both, that is transparent to opaque in shades of green, brown, yellow, white, red, and purple. Apatite is a minor constituent in igneous and metamorphic rocks. Yellow-green asparagus stone and blue-green manganapatite are used in jewelry. Apatite is mined to make phosphatic fertilizers and is used in fission track dating of rocks (see dating ). Commercial deposits are mined in Idaho, Tennessee, and Wyoming, and in N Africa and Russia.

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apatite

A Dictionary of Biology | 2004 | Â© A Dictionary of Biology 2004, originally published by Oxford University Press 2004. (Hide copyright information) Copyright

apatite A complex mineral form of the salt calcium phosphate, Ca₅(PO₄)₃(OH,F,Cl), that is the main constituent of the enamel of teeth.

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Free newspaper and magazine articles

	Renewed Mining at the Western Quarries of Mount Apatite, Maine. Magazine article from: Rocks & Minerals; 1/1/1997
	Nanocrystalline apatite-based biomaterials.(Brief article)(Book review) Magazine article from: SciTech Book News; 6/1/2009
	VIETNAM: INDUSTRIAL PRODUCTS FACE SALES DIFFICULTIES.(Diesel engines, machine tools, apatite ore, phosphate, bike tires, electric bulbs among them)(Brief Article) Newspaper article from: IPR Strategic Business Information Database; 7/16/2001

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	Renewed Mining at the Western Quarries of Mount Apatite, Maine. Magazine article from: Rocks & Minerals; 1/1/1997; ; 700+ words ; ...been resumed on the western slopes of Mount Apatite in the town of Auburn, Maine (see fig. 1...tourmaline but is best known for deep purple apatite, including the remarkable Roebling apatite, now in the collection of the Smithsonian Institution... Read more
	Nanocrystalline apatite-based biomaterials.(Brief article)(Book review) Magazine article from: SciTech Book News; 6/1/2009; 172 words ; 9781606920800 Nanocrystalline apatite-based biomaterials. Ed. by D. Eichert...Paperback RD755 Biomimetic nanocrystalline apatites are used as bone substitute materials...of recent research on nanocrystalline apatite composition, structure, and properties... Read more
	VIETNAM: INDUSTRIAL PRODUCTS FACE SALES DIFFICULTIES.(Diesel engines, machine tools, apatite ore, phosphate, bike tires, electric bulbs among them)(Brief Article) Newspaper article from: IPR Strategic Business Information Database; 7/16/2001; 91 words ; ...year the country has had difficulties selling 15 kinds of industrial products, VNA reports. Diesel engines, machine tools, apatite ore, phosphate, bike tires and electric bulbs are some of those products. The production of diesel motors decreased to about... Read more
	Tapping into apatite. (Spectrum). Magazine article from: Environment; 9/1/2002; ; 417 words ; ...calcium contained in the common calcium phosphate mineral called apatite, which previously hadn't been recognized as being available...But now, the researchers may have to go deeper in search of apatite to get a true picture of a forest's calcium reserves. University... Read more
	CARNEGIE MELLON DEVELOPS JAVA PROGRAMMING TOOLS. Newspaper article from: GUI Program News; 7/1/2009; 700+ words ; ...The tools - Jadeite (www.cs.cmu.edu/jadeite) and Apatite (www.cs.cmu.edu/apatite) - take advantage of human-centered design techniques...but essential for Java programming. Jadeite and Apatite help programmers find what they need among those... Read more
	30th Rochester Mineral Symposium: contributed papers in specimen mineralogy: Part 1. Magazine article from: Rocks & Minerals; 5/1/2004; ; 700+ words ; ...Seaman Mineral Museum. INVESTIGATION OF PURPLE APATITE FROM GRANITIC PEGMATITES Apatite is the most common phosphate mineral found in...green to less common blue, white, or pink. Purple apatite is extremely rare but widespread and is virtually... Read more
	Effects of phosphate and microbial amendments on lead (Pb) contaminated soil.(SOUTH CAROLINA ACADEMY OF SCIENCE ABSTRACTS)(Brief article) Magazine article from: Bulletin of the South Carolina Academy of Science; 1/1/2005; ; 248 words ; ...influence of three types of phosphate apatites and two microbial amendments on...availability. North Carolina and Florida apatites (rock phosphates) release phosphate...available phosphate. Biological apatite (ground fish bone) has a much higher... Read more
	Clinozoisite and Epidote from Pakistan.(Brief Article) Magazine article from: Rocks & Minerals; 9/1/2001; ; 670 words ; Since my letter about the supposed pseudomorphs of feldspar (actually quartz) after apatite from Malawi was published in this journal (May/June 2001), the editor has agreed to make space available in Rocks & Minerals... Read more
	INDIA: MAY OUTPUT OF VARIOUS MINERALS.(Brief Article) Newspaper article from: IPR Strategic Business Information Database; 7/14/2003; 84 words ; During May 2003 the output of chromite increased by 72 per cent, lignite 13 per cent, apatite and phosphorite 9 per cent, lead conc. 8 per cent, petroleum (crude) 4 per cent, coal and gold 2 per cent each, natural gas (utilised... Read more
	Alleged nanobacteria do not cause calcification of arterial plaque. (Letters to the Editor). Magazine article from: Townsend Letter for Doctors and Patients; 11/1/2002; 700+ words ; ...macromolecules of calcium carbonate phosphate apatite. (2) These submicroscopic (submicron...and submicroscopic crystals of calcium apatite, as occur in plasma, were all shown to...were seen to incorporate microcrystals of apatite. The fact that intracellular calcification... Read more