Hi
@skylark 
That beautifull peace lily. I also have one like that. The leaf first emerge yellowish but turn to minty green with age. (Photo : Comparing to white variegate variety on the right and dark green variety on the left)
I dont know if it Platinum Mist. The nurserymen simply call them silver leaf spathiphyllum
But it have tough wide leaves with short stem. Not like the one on the first photo we talking about, which have narrow leaves, a bit wavy and much flexible
. And the color stay pale green
