This is an extremely important specimen of the mineral formerly known as "Herrengrundite," clearly of a very rare and unique habit that dates it to major finds here in the mid-1800s. Specimens are represented in this quality only in museums today (and in a very few specimens in private hands, such as a famous piece Ex. Archduke Stephan collection which I had the luck to handle in 2001!). Clusters of robust large crystals such as these, on the contrasting matrix, have been sought after by collectors ever since, and though more devilline has been found in recent years it has not approached this quality. The piece is very beautiful and elegant, making this a competition-level miniature with unusual balance and aesthetics. As well, it is simply significant for the rarity and historic importance of the species.