Baltic amber stone with fossil inclusion - spider Araneae and 2 ants, it looks like spider and one of the ants are fighting.
It weighs 3.1 grams. Measurements of stone 29x20x8mm, length of spider body and head ~ 2.2mm, ants ~ 2 - 3mm.
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.