pseudomorph

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pseu·do·morph

(sū'dō-mōrf),

A mineral found crystallized in a form that is not proper to it but to some other mineral.

[pseudo- + G. morphē, form]

References in periodicals archive ?

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.

Calcium oxalate in soils, its origins and fate - a review

Muscovite pseudomorphs after staurolite as a record of fluid infiltrating during prograde metamorphism.

Petrologic significance of Fe-rich staurolite in pelitic schists of the Silgara Formation, Santander Massif/Significado Petrologico de Estaurolita Rica en Fe en Esquistos Peliticos de la Formacion Silgara, Macizo de Santander

In many cases the pseudomorphs after feldspar are well noticed.

Investigation of gold and base metals mineralization and the petrochemical studies of the associated host rocks, Shagari Bala area, Skardu Gilgit- Baltistan, Pakistan

Some of these minerals represent pseudomorphs after previous mafic minerals (Fig.

Origin and provenance of igneous clasts from late Palaeozoic conglomerate formations (Del Raton and El Planchon) in the Andean Precordillera of San Juan, Argentina

* Crystal pseudomorphs. Evaporite crystal splays can produce radial structures (J.

Insights into an Early Jurassic dinosaur habitat: ichnofacies and enigmatic structures from the Portland Formation, Hoover Quarry, Massachusetts, U.S.A

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.

Ilfeld Harz Mountains: Thuringia, Germany

Chemical weathering of plagioclase, alkali feldspar, and biotite has formed kaolin which mostly occurs as an anisotropic matrix which pseudomorphs primary minerals (Fig.

Relationships between fabric, water retention, and strength of hard subsoils in the south of Western Australia

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]

Geoheritage 2. Examples of geoeducation, geoconservation and georescue projects in Ontario

Ink Release 43 Thick or diffuse clouds, pseudomorphs, long ropes, short strings, diffuse puffs, or alternating with defecation 6.

Behaving in the dark: locomotor, chromatic, postural, and bioluminescent behaviors of the deep-sea squid Octopoteuthis deletron Young 1972

The ratios among the remaining alkalies and alkaline earths, as well as their concentrations in the HO--Al(Mg, Fe)--O--Si--O newly formed precipitates and their total negative charge, are decisive in the resulting clay mineral assemblage within the individual pseudomorphs. The microenvironment rich in [K.sup.+] prefers the crystallization of illite, while that rich in [Na.sup.+] or [Ca.sup.2+] or [Mg.sup.2+] prefers the crystallization of smectite or vermiculite.

Phyllosilicates in the sediment-forming processes: weathering, erosion, transportation, and deposition

Microscopic supporting evidence includes microcracks, intraformational micro-breccia/conglomerate, an abundance of dolomite, anhydrite/gypsum pseudomorphs, and fenestrate structures lined with calcite, dolomite and tar.

Mudcracks, bird's-eye, and anhydrite in intertidal/supratidal late Silurian Kokomo Limestone, Indiana