pseudomorph

plural pseudomorphs

1. A deceptive, irregular, or false form; specifically
2. A deceptive, irregular, or false form; specifically:
   1. chemistryA mineral that formed by replacement of an existing mineral (or organic matter) such that the new mineral has the appearance and dimensions of the original.

      Petrified wood is a silicic pseudomorph of the original wood.

      1 more example

      The first kind of pseudomorphs, are pseudomorphs by alteration; the second, pseudomorphs by replacement; the third, pseudomorphs by infiltration; the fourth, pseudomorphs by incrustation.

      1852, James D. Dana, A Manual of Mineralogy, page 54

present singular third person pseudomorphs · participle present pseudomorphing · participle past pseudomorphed · past pseudomorphed

1. To be transformed into such a form