{"id":333022,"date":"2018-08-15T12:31:17","date_gmt":"2018-08-15T16:31:17","guid":{"rendered":"http:\/\/www.rochester.edu\/newscenter\/?p=333022"},"modified":"2018-08-16T09:23:51","modified_gmt":"2018-08-16T13:23:51","slug":"labradorite-crystals-sparkling-summer-in-the-field-333022","status":"publish","type":"post","link":"https:\/\/www.rochester.edu\/newscenter\/labradorite-crystals-sparkling-summer-in-the-field-333022\/","title":{"rendered":"A sparkling summer in the field"},"content":{"rendered":"<p>Geology major Ben Crummins \u201920, left, and physics and astronomy major Frank Padgett III \u201919 accompanied John Tarduno, professor and chair of <a href=\"http:\/\/www.sas.rochester.edu\/ees\/\">earth and environmental sciences<\/a>, to Labrador, Canada, this summer where the group conducted field work. The students sampled a rock known as anorthosite, which contains labradorite crystals. Labradorite crystals have the special property of refracting and reflecting light, which results in a unique iridescence.<\/p>\n<p>The project advances research on Earth\u2019s magnetic field and the origin and age of Earth\u2019s solid inner core, Tarduno says. \u201cCrystals within the anorthosite can be excellent magnetic recorders because they preserve the history of the magnetic field when the crystals formed more than 1 billion years ago.\u201d<\/p>\n<p>Photos of the rocks below show the labradorite crystals, which look like sparkling blue spots.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-333072\" style=\"clear: none;\" src=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2018\/08\/labradorite-crystals-2.jpg\" alt=\"close-up of rocks with sparking blue crystals\" width=\"350\" height=\"350\" \/><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-333062\" src=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2018\/08\/labradorite-crystals-1.jpg\" alt=\"close up image of rocks with sparkling, blue crystals\" width=\"350\" height=\"350\" \/><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Geology major Ben Crummins \u201920, left, and physics major Frank Padgett III \u201919 accompanied John Tarduno, professor and chair of earth and environmental sciences, to Labrador, Canada, this summer where the group conducted field work. The students sampled a rock known as anorthosite, which contains labradorite crystals. Labradorite crystals have the special property of refracting and reflecting light, which results in a unique iridescence.\u00a0\u00a0(University of Rochester photo \/ John Tarduno)<\/p>\n","protected":false},"author":912,"featured_media":333112,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[11556],"tags":[18852,19242,2056,20932],"class_list":["post-333022","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-in-photos","tag-department-of-earth-and-environmental-sciences","tag-global-engagement","tag-john-tarduno","tag-undergraduate-research"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A sparkling summer in the field<\/title>\n<meta name=\"description\" content=\"Students accompanied John Tarduno, professor and chair of earth and 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