The name of this mineral is actually Chinese Picture Stone.
It does indeed come exclusively from China, and don't you think it does - at this high resolution - look like a Chinese landscape painting, or, rather, tapestry with hills and trees?
More importantly, it creates a richly distinctive scarf when printed on Chinese - of course - silk.
Its golden qualities make it shimmer in silk, and make it one of the most talked about scarves when worn.
Rare in every sense with very few left.