Baltic amber stone with fossil inclusions - extremely rare two-pronged bristletail Diplura, nice Pselaphid beetle and gnat.
It weighs 0.5 grams. Measurements of stone 12x12x4mm, length of diplura max ~ 2.7mm.
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.