Jeffersonite Jef"fer*son*ite, n. [Named after Thomas Jefferson.] (Min.) A variety of pyroxene of olive-green color passing into brown. It contains zinc. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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  • Jeffersonite — is a dark green pyroxene mineral, a manganese zinc enriched variety of augite (Ca(Mn,Zn,Fe)Si2O6), sometimes compared to aegirine. Jeffersonite is not a recognized mineral name.It occurs in pegmatites where it can form crystals up to 30 cm long… …   Wikipedia

  • jeffersonite — noun A variety of pyroxene of olive green color passing into brown. It contains zinc …   Wiktionary

  • jeffersonite — jef·fer·son·ite …   English syllables

  • jeffersonite — ˈjefə(r)səˌnīt noun ( s) Etymology: Thomas Jefferson + English ite : a mineral Ca(Mn,Zn,Fe)Si2O6 consisting of a dark green or greenish black pyroxene …   Useful english dictionary

  • List of minerals — This is a List of minerals for which there are Wikipedia articles. Mineral variety names and mineraloids are to be listed after the valid minerals for each letter.For a complete listing (about 4,000) of all mineral names: List of minerals… …   Wikipedia

  • Axinite — – Deposit Topotype, France General Category Borosilicates Chemical formula …   Wikipedia

  • Manganese nodule — Polymetallic nodules, also called manganese nodules, are rock concretions on the sea bottom formed of concentric layers of iron and manganese hydroxides around a core. The core may be microscopically small and is sometimes completely transformed… …   Wikipedia

  • Rhodochrosite — from Sweet Home Mine, Alma, Colorado, USA General Category Mineral species …   Wikipedia

  • Manganite — This article is about the mineral of formula MnO(OH), for other uses of the term manganite see Manganite (disambiguation) Manganite Manganite, Ilfeld, Thuringia, Germany (size: 5.2×4.1×2.7 cm) Gener …   Wikipedia

  • Tantalite — Tantalite, Pilbara district, Australia General Category Oxide minerals Chemical formula …   Wikipedia

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