Morning droplets back blip

A coworker gave me a few slips from his Purple Heart (Tradescantia pallida) plant years ago. Early in the morning it is covered with tiny crystal like droplets. It is beautiful alone or mixed in with other plants. I use it both ways. Easy to root and grow. I left some in our farmhouse last winter and it goes down into the single digits there since we turn the heat off. It survived 5 months with no heat or water. Tough plant indeed!