Editing Titanium (section)

=== Jewelry ===

[[File:Anodized titanium table.jpg|thumb|right|Relation between voltage and color for anodized titanium]]
Because of its durability, titanium has become more popular for designer jewelry (particularly, [[titanium ring]]s).<ref name=Donachie2000/> Its inertness makes it a good choice for those with allergies or those who will be wearing the jewelry in environments such as swimming pools. Titanium is also [[Titanium gold|alloyed with gold]] to produce an alloy that can be marketed as [[Fineness|24-karat]] gold because the 1% of alloyed Ti is insufficient to require a lesser mark. The resulting alloy is roughly the hardness of 14-karat gold and is more durable than pure 24-karat gold.<ref>{{cite journal |url=http://goldbulletin.org/assets/file/goldbulletin/downloads/Gafner_4_22.pdf |title=The development of 990 Gold-Titanium: its Production, use and Properties |author=Gafner, G. |journal=Gold Bulletin |year=1989 |volume=22 |issue=4 |pages=112–122 |doi=10.1007/BF03214709 |doi-access=free |s2cid=114336550 |archive-url=https://web.archive.org/web/20101129195740/http://goldbulletin.org/assets/file/goldbulletin/downloads/Gafner_4_22.pdf |archive-date=29 November 2010 }}</ref>

Titanium's durability, light weight, and dent and corrosion resistance make it useful for [[watch]] cases.<ref name="Donachie2000" /> Some artists work with titanium to produce sculptures, decorative objects and furniture.<ref>{{cite web|access-date=8 August 2009 |url=http://www.titanium-arts.com/home.html |title=Fine Art and Functional Works in Titanium and Other Earth Elements  |archive-url=https://web.archive.org/web/20080513171451/http://www.titanium-arts.com/home.html |archive-date=13 May 2008 }}</ref>

Titanium may be [[anodising|anodized]] to vary the thickness of the surface oxide layer, causing optical [[interference fringe]]s and a variety of bright colors.<ref>{{cite web|url=http://electrochem.cwru.edu/ed/encycl/art-a02-anodizing.htm |title=Electrochemistry Encyclopedia |publisher=Chemical Engineering Department, Case Western Reserve University, U.S.|author=Alwitt, Robert S. |year=2002 |access-date=30 December 2006 |archive-url=https://web.archive.org/web/20080702001336/http://electrochem.cwru.edu/ed/encycl/art-a02-anodizing.htm |archive-date=2 July 2008}}</ref> With this coloration and chemical inertness, titanium is a popular metal for [[body piercing]].<ref>{{cite web |url=http://www.doctorgoodskin.com/tp/bodypiercing/|work=doctorgoodskin.com |title=Body Piercing Safety |date=1 August 2006}}</ref>

Titanium has a minor use in dedicated non-circulating coins and medals. In 1999, Gibraltar released the world's first titanium coin for the millennium celebration.<ref>{{Cite web|url=https://www.pobjoy.com/us/world-firsts|title=World Firsts|publisher=British Pobjoy Mint|access-date=11 November 2017|archive-date=26 February 2015|archive-url=https://web.archive.org/web/20150226055719/https://www.pobjoy.com/us/world-firsts|url-status=dead}}</ref> The [[Gold Coast Titans]], an Australian rugby league team, award a medal of pure titanium to their player of the year.<ref>{{cite news|last=Turgeon |first=Luke |title=Titanium Titan: Broughton immortalised |url=http://www.goldcoast.com.au/article/2007/09/20/2947_gold-coast-titans.html |newspaper=The Gold Coast Bulletin |date=20 September 2007 |archive-url=https://web.archive.org/web/20130928082012/http://www.goldcoast.com.au/article/2007/09/20/2947_gold-coast-titans.html |archive-date=28 September 2013}}</ref>