Henmilite

Formula: Ca2Cu[B(OH)4]2(OH)4 Henmilite is a rare blue calcium copper borate and was named after Professor Kitinosuke Henmi, and his daughter, Dr. Chiyoko Henmi form Okayama University. The Fuka Mine is the Type Locality, and in fact, is the only locality where henmilite has been found. From Alfredo Petrov: Above: Henmilite,...