Baltic amber stone with fossil inclusion - 3 stone centipedes Lithobiidae, 2 of them seems like fighting, one is on top of another, holds it, there is 100% contact.
It weighs 1.5 grams. Measurements of stone 18x17x8mm, length of centipedes ~ 6 - 7mm.
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.