gaspeite


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gaspeite

[ga′spē‚īt]
(mineralogy)
NaCO3 An anhydrous normal carbonate mineral with calcite structure.
References in periodicals archive ?
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.
There are, however, many minerals in common and the more interesting of these include the secondary minerals: gaspeite, otwayite, reevesite, retgersite and zaratite.
Native Elements Halides, Oxides & Hydroxides Awaruite Atacamite * Unnamed Bi-Ni-Fe-Pt alloy + Brucite * Unnamed Au-Cu alloy + Magnetite Theophrastite Sulfides Covellite * Arsenates, Sulfates Digenite * Annabergite + Heazlewoodite Retgersite * Millerite Unnamed nickel iron sulphate + Molybdenite * Pentlandite Polydymite * Carbonates Pyrite + Dypingite * Pyrrhotite * Gaspeite * Violarite + Hellyerite Magnesite + Otwayite + Pyroaurite * Reevesite * Zaratite Native Elements Silicates Awaruite Andradite Unnamed Bi-Ni-Fe-Pt alloy + Antigorite Unnamed Au-Cu alloy + Chrysotile Clinochlore Sulfides Diopside * Covellite * Enstatite + Digneite * Glossular + Heazlewoodite Lizardite Millerite Opal Molybdenite * Palygorskite * Pentlandite Pecoraite * Polydymite * Stevensite (or Saponite?
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).
Weathered metabasalt immediately adjacent to the gaspeite veins in the upper carbonate zone contains only thin (0.
Minor traces of retgersite, azurite, magnesite and pale green gaspeite have been found along microfractures in some gossan samples.