“The Human Heart” is a very special rare wood opal specimen.
It’s the Rootstock of a Tree or Bush and very very slow grown as you can see from the year rings. That tree/bush had a very hard life because if you count the rings you’ll get the exact age of it. If we find woodopals, usually they are limbs, branches, logs or roots. Rarer if they have knots in them and the rarest are Rootstocks like this one.