Galena and Sphalerite
Spinel-twined galena crystals, with great metallic luster, black lustrous sphalerite crystals on top"
Demo Collection
This is a Demo Collection, owned by "nobody", in order to demonstrate how a mineral specimen can belongs to MUMME collection as a part of the museum, and also belongs to their respective owner.
Calcite, Dolomite, Chalcopyrite and Vesuvianite
Set of mineral species, a matrix of iridescent chalcopyrite, one side covered with white dolomite, and the other side covered with pentadodecahedral transparent calcite crystals. and a tiny set of vesuvianite crystals peeking out.
Pyrite and Galena
long floater pseudo-cubic pyrite crystal with brass luster and striated faces, partially covered with lots of tiny lustrous galena crystals.
Faden Quartz
Set of tabular quartz crystals arranged vertically with a white thread along the specimen in one side, in the other side chlorite inclusions make green the internal line, which defines this variety of quartz.
Pyrite and Galena
Set of floater pseudo-pyritohedron pyrite crystals, with striated faces, partially covered with silver gray epitaxial galena crystals.
Creedite
Creedite specimen disposed in spherical shape, sharp and lustrous crystals radiating 360 degrees around its matrix.
Calcite and Galena
Semi-sphere of white lustrous calcite among scalenohedral calcite crystals covering galena matrix.
Creedite
Creedite specimen disposed in di-spherical cluster with sharp crystals and high luster, typical orange color for this location.
Quarz var. Amethyst
Cluster of very pointed elongated amethyst quartz crystals on matrix, with color zonning at the tips.
Pyrite on Calcite
Very lustrous pyrite crystals, pyritohedron shape (pentadodecahedron). embedded on white scalenohedral white pointed calcite crystals, on quartz matrix
