Aplite

Aplite
	Aplite (fine-grained center)
Composition
	Quartz, feldspar

Aplite (/ˈæplaɪt/) is an intrusive igneous rock that has a granitic composition. Aplites are fine-grained to aphanitic (without grains visible to the naked eye) and may consist of only quartz and feldspar or the term may refer to any leucocratic (pale-coloured) minor intrusion of that grain size.^[1] They are associated with the later stages of many larger intermediate to felsic intrusions.

^ Le Maitre R.W.; Streckeisen A.; Zanettin B.; Le Bas M.J.; Bonin B.; Bateman P. (2005). Igneous Rocks: A Classification and Glossary of Terms: Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks (2 ed.). Cambridge University Press. p. 58. ISBN 9781139439398.

[LeMaitre2005-1] Le Maitre R.W.; Streckeisen A.; Zanettin B.; Le Bas M.J.; Bonin B.; Bateman P. (2005). Igneous Rocks: A Classification and Glossary of Terms: Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks (2 ed.). Cambridge University Press. p. 58. ISBN 9781139439398.

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