i did a doubletake when i used this word today and atomicized it to check spelling, because it seems reminiscent of adamantine (i hadn't realized that amaranthine means, literally, having the characteristics of an amaranth, which is "any of various annuals of the genus Amaranthus having dense green or reddish clusters of tiny flowers and including several weeds, ornamentals, and food plants.") i'm not entirely sure why this, of all flowers, is heralded as being eternal, but that's not really my query.

i'm wondering if there are other not-so-obvious words that are based upon natural phenomenons, and ending in the -ine suffix.

or perhaps i'm just befuddled today, and my brain is seeing nonexistent connections.