|Statement||by E.N. Cameron [and others].|
|Series||Economic geology -- Monograph 2|
|Contributions||Cameron, Eugene N.|
Additional Physical Format: Online version: Internal structure of granitic pegmatites. Urbana, Ill.: Economic Geology Pub. Co., (OCoLC) Internal Structure of Granitic Pegmatites, Monograph 2, Economic Geology on *FREE* shipping on qualifying offers. Internal Structure of Granitic Pegmatites, Monograph 2, Economic GeologyManufacturer: Economic Geology Publishing Co., Urbana, Illinois, U.S.A. Granitic pegmatites (pegmatites for short here) have intrigued earth scientists for c granite (), the defining texture of pegmatites, was singled out and illustrated by Patrin ().Rare minerals from pegmatites attracted some of the earliest practitioners of mineralogy (e.g., Brush and Dana, ), and mineralogical studies of pegmatites have Cited by: A pegmatite is an igneous rock, formed underground, with interlocking crystals usually larger than cm in size (1 in).Most pegmatites are found in sheets of rock (dikes and veins) near large masses of igneous rocks called word pegmatite derives from Homeric Greek, πήγνυμι (pegnymi), which means “to bind together”, in reference to the intertwined crystals of .
The Puentemocha Beryl-Phosphate Granitic Pegmatite, Salamanca, Spain: Internal Structure, Petrography and Mineralogy Article (PDF Available) in The Canadian Mineralogist 50(6) January. Cerny, P. (). Rare-element granitic pegmatites. Part 1: Anatomy and internal evolution of pegmatite deposits. Part 2: Regional to global environments and petrogenesis. Geoscience Canada, 18, Granitic pegmatites result from extended fractional crystallization of large granitic plutons. from the margins inward, and skeletal, radial, and graphic intergrowth habits of crystals. The vast majority of pegmatites are granitic in composition, and this article pertains to these rocks. Internal structure of pegmatitesCited by: The classification of granitic pegmatites revisited Article (PDF Available) in The Canadian Mineralogist 43(6) December with 5, Reads How we measure 'reads'.
Pegmatites can host important deposits of ore minerals and industrial commodities, such as feldspar and mica. Their physical and chemical complexity presents daunting challenges to researchers who seek to better understand their nature and origins. With stunning color photos and clear, authoritative text, this book provides a thorough /5(13). On the coastline of Northern Portugal, metamorphic formations and pegmatites were the subject of structural analysis with the main goal of understanding Variscan kinematics and related pegmatite intrusion. This study also aims to discriminate, select and characterize relevant aspects of the structure and the paragenesis of pegmatites, well exposed as a result of coastal Cited by: 1. Pegmatites are holocrystalline usually leucocratic rocks that are, at least in part, exceptionally coarse-grained, and in which extreme variations in grain size are widespread. Their dominant constituents are minerals typically found in ordinary igneous rocks. Some pegmatites also contain less common minerals. Abstract. Vapor-undersaturated fractional crystallization experiments with Macusani glass (macusanite), a peraluminous rhyolite obsidian, at MPa yield mineralogical fabrics and zonation, and melt fractionation trends that closely resemble those found in zoned granitic pegmatites and other granitoids of comparable composition (typically peraluminous, Li-Be-Ta Cited by: