Zaratite is a bright emerald green nickel carbonate mineral with formula Ni 3 CO 3 (OH) 4 ·4H 2 O. 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.

Emerald-green; green in transmitted light. Named after Antonio Gil y Zárate (1 December 1793, El Escorial, Madrid, Spain – 27 January 1861, Madrid, Spain), dramatist. A secondary nickel carbonate of uncertain and apparently variable composition. Garcia-Guinea et al. (2014) concluded that "zaratite" should not deserve a species status.

Secondary nickel mineral in Ni-bearing rocks. Cape Ortegal, Galicia, Spain. Link to MinDat.org Location Data. Named after Antonio Gil y Zarate (1793-1861), Spanish diplomat, general director of public education, and counselor of state. Comments: Specimen exceptionally rich in apple green zaratite - a carbonate of nickel.

Zaratite Ni3(CO3)(OH)4• 4H2O c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: n.d. Point Group: n.d. Coatings composed of fibrous to spherulitic microcrystals and gellike amorphous material. Physical Properties: Fracture: Conchoidal, in aggregates. Tenacity: Brittle. Hardness = 3.5 D(meas.) = 2.57–2.69 D(calc.) = n.d.

Zaratite is a rare mineral forming secondary crusts on other nickel minerals. IMA views this is “doubtful” as a mineral species. MILWAUKEE COUNTY: Zaratite is reported as an oxidation product found on millerite crystals collected from Estabrook Park in Milwaukee (sec. 5 T.7N.

The meaning of ZARATITE is a hydrous basic nickel carbonate Ni3 (CO3) (OH)4·4H2O occurring in emerald-green incrustations or compact masses.

Zaratite is a rare hydrated nickel carbonate found in the oxidized surface part of ultrabasic nickel-bearing rocks. It is a valuable indicator of potential concentrations of nickel, but also of chromium and platinum , its classic companions.

Zaratite is a mineral with formula of Ni 2+ 3 CO 3 (OH) 4 ·4H 2 O or Ni 3 (CO 3)(OH) 4 ·4H 2 O. The IMA symbol is Zar.

Zaratite is a bright emerald green and questionable nickel carbonate mineral with formula Ni3CO3(OH)4·4H2O. Zaratite crystallizes in the isometric crystal system as massive to mammillary encrustations and vein fillings.

Zaratite definition: An emerald-green mineral, Ni 3 (CO 3 )(OH) 4 4H 2 O, often found, esp. with chromite, in or as a crust on various igneous rocks.