"Copaline" Natural Recordings by Native Speakers
The word "copaline" refers to a type of mineral, specifically a type of borate mineral. It is a hydrated boron silicate mineral with the chemical formula K3Na[B5O6(OH)2]·3H2O or K6Na[B5O6(OH)2]·5H2O.
I apologize, but it seems that the word "copaline" is not a valid word. I couldn't find any definition or usage examples for this word.