Baltic amber stone with fossil inclusion - probably unique action, some unknown insect or isopod larvae attacking a spider Archaeidae.
It weighs 0.2 grams. Measurements of stone 11x7x2mm, length of spider body and head ~ 2mm.
I can send digital high resolution picture by e-mail for personal (not commercial) use. Contact me concerning it.
If you which stone can be made into pendant for free. Please check if stone measurements are suitable for you.