Baltic amber stone with inclusion - nice huge pseudoscorpion Pseudoscorpionida, Geogarypidae probably Geogarypus gorskii.
It weighs 0.5 grams. Measurements of stone 14x11x3mm, length of pseudoscorpion body ~ 2.2mm, spread pedipalps ~ 5mm.
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.