The pictures below shows some of the things we got from Heinz and some of the bigger rocks I bought at the fair. The things in the monter is from 2021. The stuff on the table is from 2023.
This ellipsoide has a density of appx. 3.8 g/ccm. It has a polished surface, but we can se impurities and some brown substance inside. Refraktometer says it’s a rock with minerals between 3.6 and 4.8 on most places. Mainly around 4. I haven’t been able to find out what it is. My son says it’s maybe a poor Black Star sapphire. Do you have any suggestions?
