Rico's rants
A curmudgeon looks at the world
19 August 2016
BBC - Future - The quest to make a crystal harder than diamonds
http://www.bbc.com/future/story/20160818-the-quest-to-make-a-crystal-harder-than-diamonds?ocid=global_future_rss&ocid=global_bbccom_email_19082016_future
mseymour@proofmark.com
215.866.6184
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