pseudomorph


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pseudomorph

[′süd·ə‚mȯrf]
(mineralogy)
An altered mineral whose crystal form has the outward appearance of another mineral species. Also known as false form.
References in periodicals archive ?
The Blanch-Ink-Jet Maneuver may be universal in squids inhabiting the photic zone: the animal blanches Clear and jets away quickly in the backwards direction while ejecting ink in a pseudomorph that remains in the same approximate position from which the squid started the maneuver.
As referred to earlier, airborne particles in smoke from forest fires include pseudomorphs of CaOx in the form of CaC[O.sub.3] (Hoyas et al.
Actually, in my next lecture I plan to show "Map" upside down alongside Cezanne's hat and "Mont Sainte-Victoire," partly because I've come to believe over time that there are no pseudomorphs in visual art.
Iron oxide pseudomorphs after chalcopyrite make Emu Plain an exciting drill target.
Rarely, the district has also provided good specimens of hausmannite, pyrolusite, pseudomorphs of hausmannite after manganite, and pseudomorphs of pyrolusite after calcite--but it is almost entirely to its wonderful manganite specimens that Ilfeld owes its fame in the world of mineral collecting.
Chemical weathering of plagioclase, alkali feldspar, and biotite has formed kaolin which mostly occurs as an anisotropic matrix which pseudomorphs primary minerals (Fig.
Donaldson, A., and Hilowle, M.A., 2002, Organic mats, evaporite pseudomorphs and soft-sediment deformation in quartz arenites of the Cambro-Ordovician Nepean Formation: GAC-MAC, Saskatoon 2002, Program with Abstracts, [http://gac.esd.mun.ca/gac_2002/search_abs/ sub_program.asp?sess=98&form=10&abs_no=73]