What is the MAGIC RUSSIAN DIAMOND?

CAREFUL with the REALGAR!
It gradually decomposes to the mineral pararealgar when exposed to light. Pararealgar is also fragile and photosensitive -- decomposing into a powdery form of Asenic Sulfide that can easily get airborn and inhaled! I dealt with the stuff with caution when i worked as a geology lab technition at my comminity college. Here's more information: https://m.minerals.net/mineral/pararealgar.aspx

Stay safe :)