Grandma’s vintage faux pearls (that feel real!) 295,900 +/- 34,000 ppm lead. Tested with an XRF instrument. (These types of faux pearls also usually test positive when tested with a reactive agent test – like a LeadCheck swab.) [Here’s my Amazon affiliate link for LeadCheck swabs too! http://amzn.to/2tpGNzO]
As always, please let me know if you have any questions!