Baltic amber stone with fossil inclusion - large spread wings mayfly Ephemeroptera and 3 mites Acari (Phoresy).
It weighs 2.9 grams. Measurements of stone 35x19x7mm, length of insect body and head ~ 10.2mm, wingspan ~ 16.5mm.
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.