gaspeite


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gaspeite

[ga′spē‚īt]
(mineralogy)
NaCO3 An anhydrous normal carbonate mineral with calcite structure.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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XRD analysis showed that CdPb[O.sub.3], [Cu.sub.2]O (cuprite), ZnO, NiC[O.sub.3] (gaspeite), and NiO heavy metal compounds were present in the compost samples (Fig.
What this town needs "Sarasota needs to let more people know it's a great place to run a business--my staff is exceptional." Jewelry like the gaspeite and Dolomite coral bracelet below ($144) is produced here and distributed to 40 countries.
Most were shaded red, green, blue, and gold, the eyes silver or black, some decorated with feathers or tufts of human hair, the most expensive ones studded with semiprecious stones: lapis, charoite, gaspeite, jasper.
And much of the power lay in the stones: jasper could end droughts, lapis kept away troubling dreams, gaspeite brought success in love.
Green gaspeite was tentatively identified by XRD as a constituent of a yellow-green secondary coating (mostly an unnamed Ni-Fe sulfate: see below) on pentlandite and polydymite.
A fine-grained yellowish olive-green mineral on pentlandite-chlorite-magnetite-andradite-bearing serpentinite has a very similar XRD pattern to the 11A nickel aluminium sulfate described by Nickel and Clarke (1976), with minor gaspeite. Qualitative electron microprobe analysis, however, indicates an Ni-Fe rather than Ni-Al sulfate.
There are, however, many minerals in common and the more interesting of these include the secondary minerals: gaspeite, otwayite, reevesite, retgersite and zaratite.
The zone is characterized by the presence of numerous flat-lying to sub-horizontal veins of gaspeite that cut across the altered wallrock (tremolite and goethite) and extend from what was the massive sulfide layer across the matrix layer.
The lower part of the carbonate zone is dominated by gaspeite veins, and these are typically devoid of any other phases except gypsum, minor goethite, occasional paratacamite, and a few very minor phases (Table 1).
In the upper part of the carbonate zone, gaspeite veins are extensively leached, and often contain numerous vugs and cavities that are lined by thin coatings of a large variety of unusual nickel-bearing and copper-bearing minerals (Table 2).
Carbonate Zone Minor Phases Rare Phases Upper paratacamite, carrboydite, kambaldaite, annabergite, glaukosphaerite, azurite, lavendulan, hydrohonessite, retgersite, nepouite, nullaginite, pyrolusite, huntite, olivenite, otwayite, aragonite, calcite, pecoraite pharmacosiderite, [+ or -] dolomite reevesite, takovite, widgiemoolthalite Lower paratacamite, dolomite, kambaldaite huntite Weathered metabasalt immediately adjacent to the gaspeite veins in the upper carbonate zone contains only thin (0.1-5 mm) coatings of lavendulan, gypsum and minor azurite along joint planes.
Minor traces of retgersite, azurite, magnesite and pale green gaspeite have been found along microfractures in some gossan samples.