It is still in the same condition as when it was discovered, and given its remote location, the chances of it being a terrible fake are pretty remote. Even now, it isn’t easy to find.
The ultimate mystery is how this incredible phenomenon occurred. We don’t know how it happened, but it happened, and we can’t wish it away. Yes, it’s granite; it’s a well-known geological feature of South Africa that’s displayed on all geological maps, which explains why the imprint is so mysterious.
It’s either a “phenocrystic” granite or a coarse porphyritic granite that has undergone many cooling processes. The ultimate result is a fascinating mix of huge and tiny grains. This is why granite merchants prefer to mine in this area since the granite will polish up to be quite “beautiful.”
In South African geology, this outcrop is known as Mpuluzi Batholith (Granite), and formal dating of this rock yielded ages of about 3.1 billion years. This is a real problem that requires thorough scientific inquiry.