This is worth it just fo rthe extremely rich, beautiful Arsentsumebite alone! Moreover, razor-sharp Azurite crystals up to 1 cm that have the deep blue color and superb luster that is so sought-after in Azurite. On top of that, the contrast with the deep green of the matrix creates a wonderful eye-appeal. Arsentsumebite is extremely rare and such rich specimens are uncommon, old pieces. Thiis is almost certainly thus a specimen from the earlier levels of the mine, early 1900s or late 1800s. Purchased in 1980 from famed Tsumeb dealers, Miriam and Julius Zweibel.