Editing Beryllium (section)

==Occurrence==
[[File:Beryllium OreUSGOV.jpg|thumb|Beryllium ore with a [[Penny (United States coin)|U.S. penny]] for scale]]
[[File:Beryl-130023.jpg|thumb|upright=0.56|[[Emerald]] is a naturally occurring [[chemical compound|compound]] of beryllium.]]
Beryllium is found in over 100 minerals,<ref>{{Cite web|url=https://www.mindat.org/chemsearch.php?cform_is_valid=1&inc=Be,&exc=&sub=Search+for+Minerals&cf_pager_page=1|title=Search Minerals By Chemistry|website=www.mindat.org|access-date=30 October 2021|archive-date=6 August 2021|archive-url=https://web.archive.org/web/20210806100908/https://www.mindat.org/chemsearch.php?cform_is_valid=1&inc=Be%2C&exc=&sub=Search+for+Minerals&cf_pager_page=1|url-status=live}}</ref> but most are uncommon to rare. The more common beryllium containing minerals include: [[bertrandite]] (Be<sub>4</sub>Si<sub>2</sub>O<sub>7</sub>(OH)<sub>2</sub>), [[beryl]] (Al<sub>2</sub>Be<sub>3</sub>Si<sub>6</sub>O<sub>18</sub>), [[chrysoberyl]] (Al<sub>2</sub>BeO<sub>4</sub>) and [[phenakite]] (Be<sub>2</sub>SiO<sub>4</sub>). Precious forms of beryl are [[aquamarine (gemstone)|aquamarine]], [[red beryl]] and [[emerald]].<ref name="Behrens-2003" /><ref>{{cite book|chapter=Sources of Beryllium|chapter-url=https://books.google.com/books?id=3-GbhmSfyeYC&pg=PA20|pages=20–26|isbn=978-0-87170-721-5|title=Beryllium chemistry and processing|author1=Walsh, Kenneth A|date=2009| publisher=ASM International |access-date=5 January 2016|archive-date=13 May 2016|archive-url=https://web.archive.org/web/20160513053755/https://books.google.com/books?id=3-GbhmSfyeYC&pg=PA20|url-status=live}}</ref><ref>{{cite book |author=Phillip Sabey |chapter=Distribution of major deposits|chapter-url=https://books.google.com/books?id=zNicdkuulE4C&pg=PA265|pages=265–269|isbn=978-0-87335-233-8|title=Industrial minerals & rocks: commodities, markets, and uses |editor=Jessica Elzea Kogel |editor2=Nikhil C. Trivedi |editor3=James M. Barker |editor4=Stanley T. Krukowski |date=5 March 2006|access-date=5 January 2016}}</ref> <!--<ref>{{cite journal
|doi=10.2138/rmg.2002.50.14
|last1=Barton
|first1=M. D.
|last2=Young
|first2=S.
|title=Non-pegmatitic Deposits of Beryllium: Mineralogy, Geology, Phase Equilibria and Origin
|journal=Reviews in Mineralogy and Geochemistry
|volume=50
|page=591
|year=2002}}</ref>-->
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In the human body, beryllium has a concentration of 0.4 ppb by weight.<ref>{{cite web |url=http://www.webelements.com/periodicity/abundance_humans/ |title=Abundance in humans |work=Mark Winter, [[The University of Sheffield]] and WebElements Ltd, UK |publisher=WebElements |access-date=6 August 2011}}</ref>
ALSO CITED AS 0.05 ppb by weight by:
Thomas J. Glover, comp., Pocket Ref, 3rd ed. (Littleton: Sequoia, 2003), p. 324 (LCCN 2002-91021),
which in turn cites Geigy Scientific Tables, Ciba-Geigy Limited, Basel, Switzerland, 1984.
-->The green color in gem-quality forms of beryl comes from varying amounts of chromium (about 2% for emerald).{{sfn|Emsley|2001|p=58}}

The two main ores of beryllium, beryl and bertrandite, are found in Argentina, Brazil, India, Madagascar, Russia and the United States.{{sfn|Emsley|2001|p=58}} Total world reserves of beryllium ore are greater than 400,000 tonnes.{{sfn|Emsley|2001|p=58}}

The Sun has a concentration of 0.1 [[parts per billion]] (ppb) of beryllium.<ref>{{cite web |url=http://www.webelements.com/periodicity/abundance_sun/ |title=Abundance in the sun |work=Mark Winter, [[The University of Sheffield]] and WebElements Ltd, UK |publisher=WebElements |access-date=6 August 2011 |archive-url=https://web.archive.org/web/20110827013726/http://webelements.com/periodicity/abundance_sun/ |archive-date=27 August 2011 }}</ref> Beryllium has a concentration of 2 to 6 [[parts per million]] (ppm) in the Earth's crust and is the 47th most abundant element.<ref name="Merck">{{cite book
| editor1-last=O'Neil | editor1-first=Marydale J.
 | editor2-last=Heckelman | editor2-first=Patricia E.
 | editor3-last=Roman | editor3-first=Cherie B.
 | title=The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals
 | edition=14th
 | publisher=Merck Research Laboratories, Merck & Co., Inc.
 | location=Whitehouse Station, NJ, USA
 | date=2006
 | isbn=978-0-911910-00-1}}</ref>{{sfn|Emsley|2001|p=59}} It is most concentrated in the soils at 6 ppm.{{sfn|Emsley|2001|p=59}} Trace amounts of <sup>9</sup>Be are found in the Earth's atmosphere.{{sfn|Emsley|2001|p=59}} The concentration of beryllium in sea water is 0.2–0.6 [[parts per trillion]].{{sfn|Emsley|2001|p=59}}<ref>{{cite web |url=http://www.webelements.com/periodicity/abundance_seawater/ |title=Abundance in oceans |work=Mark Winter, [[The University of Sheffield]] and WebElements Ltd, UK |publisher=WebElements |access-date=6 August 2011 |archive-url=https://web.archive.org/web/20110805145627/http://www.webelements.com/periodicity/abundance_seawater/ |archive-date=5 August 2011 }}</ref> In stream water, however, beryllium is more abundant with a concentration of 0.1 ppb.<ref>{{cite web |url=http://www.webelements.com/periodicity/abundance_stream/ |title=Abundance in stream water |work=Mark Winter, [[The University of Sheffield]] and WebElements Ltd, UK |publisher=WebElements |access-date=6 August 2011 |archive-url=https://web.archive.org/web/20110804233559/http://www.webelements.com/periodicity/abundance_stream/ |archive-date=4 August 2011 }}</ref>