dactylitic

dactylitic

[dak·tə′lid·ik]
(geology)
Of a rock texture, characterized by fingerlike projections of a mineral that penetrate another mineral.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Such dactylitic texture is not unknown among minerals of the spinel group (see, e.g., Dowson and Smith 1975 for Mg-chromite, with references to previous authors and with 5 ways of genesis) but has not been observed in the Bohemian granulites.
Its minute grains gradually recrystallize into bigger ones which finally cause the destruction of the dactylitic texture and replace it by an irregular aggregate.