Zaratite

Zaratite

Zaratite is a bright emerald green nickel carbonate mineral with formula Ni3CO3(OH)4·4H2O. Zaratite crystallizes in the isometric crystal system as massive to mammillary encrustations and vein fillings. It has a specific gravity of 2.6 and a Mohs hardness of 3 to 3.5. It has no cleavage and is brittle to conchoidal fracture. The luster is vitreous to greasy.

It is a rare secondary mineral formed by hydration or alteration of the primary nickel and iron bearing minerals, chromite, pentlandite, pyrrhotite, and millerite, during the serpentinization of ultramafic rocks. Hellyerite, NiCO3·6H2O, is a related mineral.

It was found originally in Galicia, Spain in 1851, and named after Spanish diplomat and dramatist Antonio Gil y Zarate (1793-1861).

ee also

*List of minerals
*List of minerals named after people

References

* [http://rruff.geo.arizona.edu/doclib/hom/zaratite.pdf Mineral Data Publishing, PDF]
* [http://webmineral.com/data/Zaratite.shtml Webmineral data]
* [http://www.mindat.org/min-4388.html Mindat with location data]


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Look at other dictionaries:

  • Zaratite — ar a*tite, n. (Min.) [Named after Gen. Zarata of Spain.] A hydrous carbonate of nickel occurring as an emerald green incrustation on chromite; called also {emerald nickel}. [1913 Webster] …   The Collaborative International Dictionary of English

  • zaratite — [zä′rə tīt΄] n. [Sp zaratita, after Señor Zarate] an emerald green mineral, Ni3 (CO3)(OH) 4·4H2O, often found, esp. with chromite, in or as a crust on various igneous rocks …   English World dictionary

  • zaratite — /zar euh tuyt /, n. a mineral, hydrated basic nickel carbonate, occurring in the form of emerald green incrustations on chromite and magnetite. [1855 60; < Sp zaratita, after Zarate Spanish surname; see ITE1] * * * …   Universalium

  • zaratite — noun a hydrous basic nickel carbonate occurring in emerald green incrustations or compact masses …   Wiktionary

  • zaratite — zara·tite …   English syllables

  • zaratite — ˈzärəˌtīt, ˈzar noun ( s) Etymology: Spanish zaratita, from Señor Zarate, 19th century Spaniard + Spanish ita ite : a hydrous basic nickel carbonate Ni3(CO3)(OH)4.4H2O occurring in emerald green incrustations or compact masses …   Useful english dictionary

  • emerald nickel — Zaratite ar a*tite, n. (Min.) [Named after Gen. Zarata of Spain.] A hydrous carbonate of nickel occurring as an emerald green incrustation on chromite; called also {emerald nickel}. [1913 Webster] …   The Collaborative International Dictionary of English

  • emerald nickel — zaratite (basic hydrated nickel carbonate) …   Eponyms, nicknames, and geographical games

  • List of minerals U-Z (complete) — It is currently not possible to have a complete list of minerals . The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go… …   Wikipedia

  • zaratit — ZARATÍT s.n. Carbonat bazic de nichel natural, de culoare verde. – Din fr. zaratite. Trimis de spall, 10.03.2002. Sursa: DEX 98  ZARATÍT, zaratíturi, s.n. Carbonat bazic de nichel natural, de culoare verde. – fr. zaratite. Trimis de tavi,… …   Dicționar Român

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