Henmilite is an exceptionally rare and very beautiful calcium copper boro-hydroxide found at the Fuka mine in Japan, the type and only locality for the species. This piece is an exceptional small cabinet piece for the species. This contrasting specimen has dozens of well-formed, lustrous, translucent, indigo blue crystals to 3 mm that are strikingly set on a snow-white, fine-grained Olshanskyite and Calcite matrix. The Fuka Mine produced minimal amounts of the mineral historically, and the best have come from modern finds at this small deposit over a few decades and they have essentially disappeared from the market. This is an exceptionally aesthetic, three-dimensional piece with great crystals! It is literally HUGE for the discovery, circa 2000 or so. John Veevaert and I bought much of it at that time, including a number of the best pieces brought to Tucson. We sold this to Colin in those years. It is one of the most significant large specimens from a shocking find for this gorgeous and rare species - still unsurpassed.