Numerous zoned(!) crystals up to 1 cm. The piece is very attractive, with the lustrous yellow/caramel crystals distributed very evenly over the entire specimen like a ribbon. Aesthetic, and from a major mine for the species to be sure; but beyond that this is subtly more important in that it has CRYSTALLIZED MIMETITE and if you think about it, most all of the mims from mexico you see are botryoidal. So, what is something like this worth, when it is so unique and showy as well as significant for the locality??? Leithauser had about 800 euros on it, or over $1000 USD at the time I purchased this collection