It's so interesting to me to hear that so many folks have issues with malachite. I have a malachite necklace, brooch, and ring (none of which are VCA) and all have held up very well over the years. I don't wear them constantly but I've had them for probably 30+ years and they look like they did when I got them. Maybe because my pieces are chunkier and not sliced thin like the VCA pieces. Perhaps malachite doesn't like to be sliced thin like that.