Megacryst

In geology, a megacryst is a crystal or grain that is considerably larger than the encircling matrix. They are found in igneous and metamorphic rocks.^[1]

References

1. ^ "Glossary of terms". Memphis Archaeological and Geological Society. 7 April 2006. http://www.memphisgeology.org/glossary_ln.htm. Retrieved 29 December 2009. 

Notes

• Significance of k-feldspar megacryst size and distribution in the tuolumne intrusive suite, California

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