I have no idea what to charge for this. I bought a second hand crystal collection and this was part of it.

These rose carvings come in just about all crystal types. This rose is red at least, but it is no crystal/gemstone.

Have you ever seen videos of people chipping what looks like big red blocks of glass? That's what this is.

This material has glass hardness and cleavage. It is a clear glass with some minerals added in to give the whirls of swirling red. I have heard they add gold to give it a red colour but I am not sure that would work.

This is a pretty carved rose specimen regardless of crystalline properties. It has been washed, dried, and is ready to be rehomes.