Large Shungite Medallion Pendant, Leather, Hammered Copper Bail

Mahalo

This is my second purchase of this item and I bought it for my Daughter. She loves it!

I just purchased this pendant. I am hoping it will protect me from the EMF I am exposed to but not sure how to measure this. I experienced excellent help to look at options and great help to order and received package ahead of projected date of arrival. Thank you for your help