a mineral of the pyroxene group, NaFeSi2O6, commonly found in alkaline igneous rocks
Examples of 'aegirine' in a sentence
aegirine
The major rock forming minerals are leucite/pseudoleucite, diopside/aegirine, and high temperature phlogopite.
Godang Shaban, Fadlin Fadlin, Bambang Priadi 2016, 'Geochemical Signatures of Potassic to Sodic Adang Volcanics, Western Sulawesi: Implicationsfor Their Tectonic Setting and Origin', Indonesian Journal on Geosciencehttps://ijog.geologi.esdm.go.id/index.php/IJOG/article/view/344. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The chemical composition of the pyroxenes differs among individual enclaves, with variable proportions of diopside, kosmochlor and jadeite-aegirine end-members.
Ondřej Krátký, Vladislav Rapprich, Martin Racek, Jitka Míková, Tomáš Magna 2018, 'On the Chemical Composition and Possible Origin of Na–Cr-Rich Clinopyroxene in Silicocarbonatitesfrom Samalpatti, Tamil Nadu, South India', Mineralshttp://www.mdpi.com/2075-163X/8/8/355. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Chemical analyses of the gneiss and chemical and physical data on the aegirine and the riebeckite are presented.
K. Hytönen, T. Hautala 1985, 'Aegirine and riebeckite of the alkali gneiss of Pikkukallio in the Honkamäki-Otanmäkiregion, Finland', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume57/sgs_bt_057_pages_169_180.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)