100 Years – 100 Objects: Zoisite


December 16, 2009
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The Houston Museum of Natural Science was founded in 1909 – meaning that the curators of the Houston Museum of Natural Science have been collecting and preserving natural and cultural treasures for a hundred years now. For this yearlong series, our current curators have chosen one hundred exceptional objects from the Museum’s immense storehouse of specimens and artifacts—one for each year of our history. Check back here frequently to learn more about this diverse selection of behind-the-scenes curiosities—we will post the image and description of a new object every few days.

This description is from Joel, the Museum’s President and Curator of Gems and Minerals. He’s chosen spectacular objects from the Museum’s mineralogy collection, which includes some of the most rare and fascinating mineral specimens in the world, that we’ll be sharing here – and at 100.hmns.org– throughout the year.

Zoisite

Zoisite (var. tanzanite)
Merelani Hills near Arusha, Umba Valley, Tanzania

This magnificent, near-flawless crystal of tanzanite (the gemstone variety of the mineral zoisite) was found in Tanzania in 1991. As seen here, the specimen is an exceptional example of trichroism, whereby the same crystal exhibits three distinctly different colors, depending on the viewing angle. 
 
Marvel at the world’s most spectacular collection of natural mineral crystals in the Cullen Hall of Gems and Minerals at the Houston Museum of Natural Science.

You can see more images of this fascinating artifact – as well as the others we’ve posted so far this year – in the 100 Objects section at 100.hmns.org.

Joel
Authored By Joel Bartsch

Not only is Joel the President of the Museum, he’s also a curator. He has the rare distinction of having held almost every job here – including security guard, back before his museum career took him to distinguished posts all across the country. At HMNS, he built our outstanding collection of gems and minerals and the world-renowned Wiess Energy Hall before being appointed President in July 2004. Since, he’s brought us Lucy, Leonardo and…check back here for his updates on the next big things coming up.

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