This specimen was collected in 1970 by Jim Minette and Dave Wilber, as noted on the Minette label accompanying. The specimen consists of prismatic, lustrous and translucent, white crystals to 1 cm in length nearly covering a massive matrix of the same species (i think). It is in any case a rather large, rich example of this rare borate, and one of the largest I have seen in the collections of these few people who specialzied in California borates