Baltic amber stone with inclusion - huge pseudoscorpion Pseudoscorpionida, Neobisidae.
It weighs 0.3 grams. Measurements of stone 14x8x3mm, length of pseudoscorpion max ~ 4.2mm, body ~ 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.