These are all "signature stones", marked with the Old Norse letter "C" and often with three dots. All cleaned by hand with brushes and soa ked in lemon juice, apple cider, vinegar, soap, and water.
Imagine being out there on a blood moon, in July, in a place called Bloody Basin on a Blood Moon night, trapped miles from other people after a rogue thunderstorm. All of the stones have epic events in their finding. This cannot be scripted and this will remain part of the legacy of each Skystone indefinitely.