pegmatoid


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pegmatoid

[′peg·mə‚tȯid]
(petrology)
An igneous rock that has the coarse-grained texture of a pegmatite but that lacks graphic intergrowths or typically granitic composition.
References in periodicals archive ?
A pegmatoid area within texturally and compositionally varied gabbro near the northwestern margin of the Duck Lake Pluton was sampled for dating.
5 Cranberry Head locally highly fractured and Syenogranite albitized; leucocratic; granophyric aplite veins common 6 Dude Lake Pluton local pegmatoid lenses.
The survey has delineated several dykes that are known to traverse the area, and has also identified some iron replacement ultramafic pegmatoid bodies ("IRUP's"), which are known to disrupt mineralisation in places in the Bushveld.
has a footwall pegmatoid and for at least 30 centimeters below the base of the