Bubbles, it is interesting indeed. It's nothing like rose quartz though. It isn't quartz and it's totally opaque.
And the oddest thing that the one I've had for years has these darker parts in it which the skull doesn't have at all. The smell is some metal I think. I don't like the smell of metal, hihi.
I guesstimating this comes from those darker parts as the skull doesn't smell of it at all.
To illustrate the difference I'm talking about
:
The darker thulite tumble I already had is like this:
The skull on the other hand side is more like this:
You can clearly see the first type has no specific lining, is just spots while the last pink one does have clear lining. Not as obvious as in some types of agate, but still.
Somehow it's like two different types of crystal, or maybe form a different location.