equigranular

equigranular

[¦ē·kwə′gran·yə·lər]
(petrology)
Pertaining to the texture of rocks whose essential minerals are all of the same order of size.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Schistose amphibolites (metadiabases) are fine-grained, equigranular rocks of granonematoblastic texture.
1): Bocabec Gabbro--greyish green, locally layered, medium-grained gabbro and minor associated granitic rocks; Utopia Granite--typically red, leucocratic, medium--to coarse-grained, equigranular, biotite granite; Welsford, Jake Lee Mountain, and Parks Brook granites--beige to pink, mediumgrained and equigranular to fine-grained and porphyritic, amphibole-bearing, peralkaline granites; Magaguadavic Granite--greyish pink, coarse-grained, megacrystic granite; John Lee Brook Granite--light grey, medium-grained, equigranular, garnetiferous, two-mica granite; and Mount Douglas Granite--light pink, medium-to-coarse-grained and equigranular to fine-grained and porphyritic, rapakivitextured, biotite granite.
2, 3, 5E-F), the spherulitic part of the microstructure is no longer observable, and an equigranular mosaic of sub-euhedral and locally euhedral calcite crystals become recognizable in the middle sector of the rostra, which are the product of transversally cut prismatic calcite crystals (that is, perpendicular to the c-axis).
Garnet, usually equigranular, occurs as euhedral to subhedral large porphyroblasts (up to 1.2 cm diameter), with cores frequently rich in minute inclusions of quartz, plagioclase, graphite and Fe-Ti oxides, and their rims are poorer in inclusions.