jeffersoniten.
/ˈdʒɛfəsənʌɪt/ Mineralogy.
A greenish-black variety of pyroxene, containing some zinc and manganese.
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the world > the earth > minerals > types of mineral > silicates > inosilicates single chain > [noun] > pyroxene > other pyroxenes
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1822 Amer. Jrnl. Sc. 5 402 Jeffersonite..has a great resemblance to pyroxene.
1852 C. U. Shepard Treat. Mineral. 199 Jeffersonite..abounds in iron and manganese.
This entry has not yet been fully updated (first published 1900; most recently modified version published online June 2018).
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