A great example of henmilite from a find made around 1994-95, I remember sitting at the computer as a broke 3^rd grader reading about these on John Veevaert’s “Trinity Minerals” site marveling at the beautiful deep, inky purple blue on the contrasting white matrix. The story was that a local Japanese mineral club had stumbled upon them while on a collecting trip at a mine worked primarily for materials used in the manufacture of toothpaste.

At this point, 30 years later, they are quite rare and even micros command somewhat high prices—this one has a group of crystals displaying that distinctive inky purplish blue color sprinkled on a white matrix. Good (and decently sizable) example of this rare borate!