Pseudomorph

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Pseudomorph

Description

A mineral that replicates the shape or form of another material. Pseudomorphs occur in three types:

1. Paramorph: a mineral that visually looks like another crystalline structure of the same composition (i.e., aragonite altering to look like calcite). This pseudomorph type is also called allomorph.

2. Infiltration pseudomorph: a mineral formed by deposition in which the new compound retains the structure and shape of the original (i.e., petrified wood).

3. Incrustation pseudomorph: a mineral formed in the cavity of a previous material whose shape was preserved by a coating from a second mineral (i.e., fossil).

Pseudomorph

Synonyms and Related Terms

paramorph; allomorph;

Additional Information

º Jakes, K. A., and Sibley, L. R.1989. Evaluation of a partially mineralized fabric from Etowah. In Archaeometry; Proceedings of the 25th International Symposium. ed.Y.Maniatis. New York: Elsevier. 237–44.º Blanchette, R.A. and E. Simpson. 1992. Soft rot decay and wood pseudomorphs in an ancient coffin (700 BC) from tumulus MM at Gordion Turkey. International Association of Wood Anatomists Bulletin. 13:201-213.

Sources Checked for Data in Record

  • Website address 1 Comment: Dana's Manual of Mineralogy by Cornelis S. Hurlbut, Eighteenth Edition, (1971, John Wiley & Sons, Inc.)
  • Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: 'Psudomorph' definition from from Dana's Manual of Mineralogy by Cornelis S. Hurlbut, Eighteenth Edition, (1971, John Wiley & Sons, Inc.)
  • Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: 'Psudomorph' indicates definition primarily from Dana's Manual of Mineralogy by Cornelis S. Hurlbut, Eighteenth Edition, (1971, John Wiley & Sons, Inc.)