http://gemologyproject.com/wiki/index.php?title=File:Tanzanite-Heating.png&feed=atom&action=historyFile:Tanzanite-Heating.png - Revision history2024-03-28T21:02:18ZRevision history for this page on the wikiMediaWiki 1.28.0http://gemologyproject.com/wiki/index.php?title=File:Tanzanite-Heating.png&diff=13805&oldid=prevAntony Zagotas: Photo showing Tanzanite crystals before and after heating, demonstrating the valence reduction and color change.2016-09-08T11:46:41Z<p>Photo showing Tanzanite crystals before and after heating, demonstrating the valence reduction and color change.</p>
<p><b>New page</b></p><div>Photo showing Tanzanite crystals before and after heating, demonstrating the valence reduction and color change.</div>Antony Zagotas