An excellent very old Libethenite from the type locality with well-formed rosette structures. This habit is quite rare from Lubietova (originally Libethen) and these are sizable up to 5 mm which is large for any locale. From the collection of Dr Warren Johannson, his label notes he obtained it in a trade with Amherst College in 1982. The rosettes are in very good condition having been protected in a vug.
Super crystals of the rare Copper Arsenate Euchorite from the type locality. The color and form are especially nice on this thumbnail, there is a slight translucence and classic waxy luster. Examination with good magnification finds a few tiny rough spots and the backside is incomplete, but by naked eye the condition is excellent. Though not perfect the quality for this rare specie is still very fine and not often available. A slightly bent or curved aspect to some faces is noted as was often the case in the larger crystals in the type locality. These crystals are very large for the locality and for the specie. An older specimen, Ex Rejl collection.
Lubietova, Slovenske Rudohorie Mts,
Banska Bystrica Region,
9 x 7.7 x 4.6 CM (cabinet)
Large and superb, rich old specimen of Pseudomalachite from the ancient mining area of Lubitova. This locality was called Libethen by the Germans and Libetbanya by the Hungarians, but is now in Slovakia, and is Lubitova. Mined since the Bronze age and closed in 1863, this is one of the great locales of Europe and this specimen is an outstanding Pseudomalachite which has formed on and arround a gossan type matrix. In addition to the large botryoidal green masses there are hundreds of tiny spheres and a few stalactitic fingers in a dense mass of deep green. Very fine piece for the specie and for the locality.