Editing Titanite (section)

==Nomenclature==
The [[International Mineralogical Association]] Commission on New Minerals and Mineral Names (CNMMN) adopted the name titanite and "discredited" the name sphene<ref>{{cite web|first1=Ernest H. |last1=Nickel |first2=Monte C. |last2=Nichols |author-link1=Ernest Henry Nickel |author-link2=Monte C. Nichols |url=http://pubsites.uws.edu.au/ima-cnmnc/IMA2008-10.pdf#page=280 |title=IMA/CNMNC List of Mineral Names |date=2008-10-17 |page=280 |format=PDF |publisher=Material Data, Inc. |access-date=2009-03-14}}</ref> as of 1982,<ref>{{cite journal |title=International Mineralogical Association: Commission on New Minerals and Mineral Names |first=M. H. |last=Hey |journal=Mineralogical Magazine |date=December 1982 |volume=46 |issue=341 |pages=513–514 |doi=10.1180/minmag.1982.046.341.25|bibcode=1982MinM...46..513H |s2cid=140202196 }}</ref> although commonly papers and books initially identify the mineral using both names.<ref>{{cite book |title=Minerals: Their Constitution and Origin  |first1=Hans-Rudolf |last1=Wenk |first2=Andrei |last2=Bulakh |publisher=Cambridge University Press |date=May 2004 |isbn=978-0-521-52958-7 |location=New York, NY}}</ref><ref>{{cite book |title=Introduction to Optical Mineralogy |first =William D. |last=Nesse |publisher=Oxford University Press, USA |isbn=978-0-19-514910-4 |date=August 2003 |location=New York, NY}}</ref> Sphene was the most commonly used name until the IMA decision, although both were well known.<ref name="Dana"/> Some authorities<ref name="Hayden">{{cite journal |title=A thermobarometer for sphene (titanite) |first1=L. A. |last1=Hayden |first2=E. B. |last2=Watson |first3=D. A. |last3=Wark |journal=Contributions to Mineralogy and Petrology |year=2008 |volume=155 |issue=4 |pages=529–540 |doi=10.1007/s00410-007-0256-y|bibcode = 2008CoMP..155..529H |s2cid=129085138 }}</ref> think it is less confusing as the word is used to describe any chemical or crystal with [[Oxide|oxidized]] titanium such as the [[Rare earth element|rare earth]] titanate [[pyrochlore]]s series<ref>{{cite journal |title=Formation enthalpies of rare earth titanate pyrochlores |volume=177 |issue=6 |date=June 2004 |pages=1858–1866 |doi=10.1016/j.jssc.2004.01.009  |first1=K. B. |last1=Helean |first2=S. V. |last2=Ushakov |first3=C. E. |last3=Brown |first4=A.|last4=Navrotsky |first5=J. |last5=Lian |first6=R. C. |last6=Ewing |first7=J. M. |last7=Farmer |first8=L. A. |last8=Boatner |journal=Journal of Solid State Chemistry|bibcode = 2004JSSCh.177.1858H |s2cid=97381935 }}</ref> and many of the minerals with the [[Perovskite (structure)|perovskite structure]].<ref>{{cite journal |title=Luminescence in semi-crystalline zirconium titanate doped with lanthanum |volume=434 |issue=1–2 |date=October 2006 |pages=19–22 |journal=Materials Science and Engineering: A |first1=G. F. G. |last1=Freitas |first2=R. S. |last2=Nasar |first3=M. |last3=Cerqueira |first4=D. M. A. |last4=Melo |first5=E. |last5=Longo |first6=J. A. |last6=Varela |doi=10.1016/j.msea.2006.07.023}}</ref> The name sphene continues to be publishable in peer-reviewed scientific literature, e.g. a paper by Hayden et al. was published in early 2008 in the journal Contributions to Mineralogy and Petrology.<ref name="Hayden"/> Sphene persists as the informal name for titanite [[gemstone]]s.