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1875, in the meaning defined above
German agricolit, from Georgius Agricola (Georg Bauer) †1555 German mineralogist + German -it -ite
Time Traveler for agricolite
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“Agricolite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/agricolite. Accessed 17 May. 2022.
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