- 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 aspecific gravity of 2.6 and aMohs hardness of 3 to 3.5. It has no cleavage and is brittle toconchoidal 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 , andmillerite , during theserpentinization ofultramafic rocks.Hellyerite , NiCO3·6H2O, is a related mineral.It was found originally in Galicia,
Spain in 1851, and named after Spanish diplomat and dramatistAntonio 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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