andesine

From Andes +‎ -ine, after its type locality in the Andes of Colombia.

andesine (countable and uncountable, plural andesines)

1. (mineralogy) Sodium calcium aluminum silicate, (${\displaystyle Na_{x}Ca_{x}AlSi_{3}O_{8}}$), a plagioclase feldspar, the third member of the albite-anorthite solid solution series. Found in fine-grained andesite lavas; crystals are rarely seen.

• David Barthelmy (1997–2024) “Andesine”, in Webmineral Mineralogy Database.
• “andesine”, in Mindat.org‎, Hudson Institute of Mineralogy, 2000–2024.

• adenines