zaratite


Also found in: Dictionary, Wikipedia.

zaratite

[′zär·ə‚tīt]
(mineralogy)
Ni3(CO3)(OH)4·4H2O An emerald-green mineral consisting of a hydrous basic nickel carbonate and occurring in incrustations or compact masses.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The material of Henry and Birch (1992) consists of dull blue-green to olive-green, compact vein fillings in massive magnetite in serpentinite, with zaratite.
"Zaratite" [Ni.sub.3]([CO.sub.3])[(OH).sub.4].4[H.sub.2]O
What has long been called "zaratite" occurs at the Lord Brassey mine as emerald-green coatings and mammillary, stalactitic or amorphous encrustations along the shear planes and joint surfaces of the serpentine.
Most of the heazlewoodite appears to have reacted with carbonate-rich groundwater to form hellyerite, which has now largely dehydrated to zaratite. Dypingite formed in areas with higher Mg/Ni in the waters.
When removed from the cold, damp mine environment to areas of lower humidity and/or higher temperature, some samples may deteriorate; samples of hellyerite tend to decay to an amorphous pale green material, probably zaratite, and zaratite itself may recrystallize to otwayite (Henry and Birch, 1992) and other phases (Isaacs, 1963).
There are, however, many minerals in common and the more interesting of these include the secondary minerals: gaspeite, otwayite, reevesite, retgersite and zaratite.