a feldspar mineral of the plagioclase series consisting of an aluminium silicate of sodium and calcium. Formula: NaAlSi3O8.CaAl2Si2O8
Word origin
C19: from the Andes (where it is found) + -ine1
Examples of 'andesine' in a sentence
andesine
The diorite consists essentially of andesine, hornblende, biotite and quartz.
M. A. OBEID 2010, 'Petrogenesis of Bir Madi Gabbro-Diorite and Tonalite-Granodiorite Intrusions in SoutheasternDesert, Egypt: Implications for Tectono-Magmatic Processes at the Neoproterozoic Shield',International Journal of Economic and Environment Geologyhttp://www.econ-environ-geol.org/pdf/Article-6.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In places labradorite occurs instead of andesine.
A. Hietanen 1986, 'Role of replacement in the genesis of anorthosite in the Boehls Butte area, Idaho',Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume58/sgs_bt_058_1_pages_071_079.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In most of this anorthosite, andesine megacrysts with bytownite inclusions are embedded in a fine-grained groundmass of bytownite or anorthite.
A. Hietanen 1986, 'Role of replacement in the genesis of anorthosite in the Boehls Butte area, Idaho',Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume58/sgs_bt_058_1_pages_071_079.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)