Difference between revisions of "Pegmatite"
Jump to navigation
Jump to search
Aziraphale (talk | contribs) (categorize) |
(Light improvement, wikilinks, bolding. However, this article strikes me as extremely technical...) |
||
| Line 1: | Line 1: | ||
| − | + | A '''pegmatite''' is an [[igneous]] rock with very large (usually greater than one inch), well-formed [[crystal]]s. A granitic pegmatite has the [[mineralogy]] of a [[granite]] and abnormally large grains, whereas a gabbroic pegmatite has the mineralogy of a [[gabbro]] and very large grains. A pegmatite can also be an intrusive igneous rock. <ref>Plank and Schenck, 1998: [http://vulcan.wr.usgs.gov/Glossary/volcano_terminology.html Glossary of Volcano and Related Terminology]</ref> | |
==References== | ==References== | ||
Revision as of 13:11, September 21, 2007
A pegmatite is an igneous rock with very large (usually greater than one inch), well-formed crystals. A granitic pegmatite has the mineralogy of a granite and abnormally large grains, whereas a gabbroic pegmatite has the mineralogy of a gabbro and very large grains. A pegmatite can also be an intrusive igneous rock. [1]
References
- ↑ Plank and Schenck, 1998: Glossary of Volcano and Related Terminology