Effenbergerite is the natural occurrence of the color Han blue. It was first found in the Wessels mine, Kalahari Manganese Field, South Africa.
Effenbergerite is the natural occurrence of the color Han blue. It was first found in the Wessels mine, Kalahari Manganese Field, South Africa.
Effenbergerite was approved as a valid mineral species by the IMA in 1993.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).