Skillshare is offering SciShow viewers two months of unlimited access to Skillshare for free! Try it here: skl.sh/scishow-14 No offense to that rock you may have on your finger, but these gems and minerals are so hard to find, they put most diamonds to shame. Hosted by: Hank Green SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at www.scishowtangents.org ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Bill & Katie Scholl, Adam Brainard, Greg, Alex Hackman, Andrew Finley Brenan, Sam Lutfi, D.A. Noe, الخليفي سلطان, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: www.facebook.com/scishow Twitter: www.twitter.com/scishow Tumblr: scishow.tumblr.com Instagram: instagram.com/thescishow ---------- Sources: pubs.geoscienceworld.org/msa/ammin/article/101/6/1245/40610/on-the-nature-and-significance-of-rarity-in www.bbc.com/news/science-environment-35569659 io9.gizmodo.com/10-gemstones-much-rarer-than-diamond-5902212?IR=T www.forbes.com/sites/trevornace/2015/11/02/12-most-expensive-gemstones-world/#7fed84151538 4cs.gia.edu/en-us/blog/red-diamonds-rarest/ nhminsci.blogspot.com/2013/01/color-in-diamonds.html www.cambridge.org/core/services/aop-cambridge-core/content/view/E6B018F89BC1A23C2857F82A5298F65D/S1431927612013542a.pdf/div-class-title-cathodoluminescence-of-natural-plastically-deformed-pink-diamonds-div.pdf www.gia.edu/gems-gemology/winter-2014-pink-to-red-diamonds-30th-argyle-diamond-tender www.nytimes.com/2015/11/23/fashion/tanzanite-buying-the-rare-gem-at-its-source.html www.tanzanitefoundation.com/ www.britannica.com/science/zoisite pubs.geoscienceworld.org/gssa/sajg/article/117/1/15/141435/origin-of-tanzanite-and-associated-gemstone www.latimes.com/science/sciencenow/la-sci-sn-rare-minerals-20160213-story.html www.eurekalert.org/multimedia/pub/98120.php www.webmineral.com/data/Hazenite.shtml#.XHCwIyN94y4 pubs.geoscienceworld.org/msa/ammin/article/96/4/675/45328/hazenite-knamg2-po4-2-14h2o-a-new-biologically www.mindat.org/min-45998.html pubs.geoscienceworld.org/ammin/article-lookup/99/10/2089 www.reuters.com/article/us-environment-minerals-idUSKCN0VL2HU science.sciencemag.org/content/346/6213/1100 science.sciencemag.org/content/sci/346/6213/1100.full.pdf science.sciencemag.org/content/346/6213/1057 www.latimes.com/science/sciencenow/la-sci-sn-rare-minerals-20160213-story.html www.bbc.com/news/science-environment-35569659 www.minsocam.org/ammin/AM70/AM70_193.pdf www.britannica.com/science/fumarole Images commons.wikimedia.org/wiki/File:DeYoung_Red_Diamond_on_display.jpg#/media/File:DeYoung_Red_Diamond_on_display.jpg commons.wikimedia.org/wiki/File:2mm_diamond_drill_bits_macro.jpg#/media/File:2mm_diamond_drill_bits_macro.jpg commons.wikimedia.org/wiki/File:Hope_Diamond_closeup.jpg commons.wikimedia.org/wiki/File:Carbon_lattice_diamond.png commons.wikimedia.org/wiki/File:A195,_Argyle_Diamond_Mine,_Western_Australia,_from_plane,_2007.JPG commons.wikimedia.org/wiki/File:Zo%C3%AFsite_(Tanzanite).jpg#/media/File:Zo%C3%AFsite_(Tanzanite).jpg commons.wikimedia.org/wiki/File:Lyngbya_majuscula.jpg#/media/File:Lyngbya_majuscula.jpg www.istockphoto.com/photo/beautiful-view-of-castelsardo-village-in-sardinia-italy-gm636214012-112736133 commons.wikimedia.org/wiki/File:Tenham_Meteorite.JPG#/media/File:Tenham_Meteorite.JPG commons.wikimedia.org/wiki/File:Tenham_meteorite,_slice_72_grams.jpg#/media/File:Tenham_meteorite,_slice_72_grams.jpg commons.wikimedia.org/wiki/File:Tenham_meteorite,_metal_flaking.jpg commons.wikimedia.org/wiki/File:Green_Izalco_Volcano.JPG commons.wikimedia.org/wiki/File:Namafjall_-_Fumarole_2.jpg www.eurekalert.org/multimedia/pub/108422.php?from=318428 commons.wikimedia.org/wiki/File:Molybdenum.jpg