Jan
14

Today in Smithsonian History: January 14, 1967

A large pear-cut ametrine from the National Gem Collection. Ametrine is a naturally occurring variety of quartz. It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Almost all commercially available ametrine is mined in Bolivia. (Photo by Chip Clark) - See more at: http://geogallery.si.edu/index.php/en/1006972/ametrine#sthash.vrCCsqQE.dpuf

A large pear-cut ametrine from the National Gem Collection. Ametrine is a naturally occurring variety of quartz. It is a mixture of amethyst and citrine with zones of purple and yellow or orange. Almost all commercially available ametrine is mined in Bolivia. (Photo by Chip Clark)

January 14, 1967 The Smithsonian Associates presents its first lecture for children, an illustrated talk by Dr. William Melson of the Department of Mineral Sciences. The talk was attended by nearly 600 children between the ages of six and 10.

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Posted: 14 January 2020
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