Gadolinite
Specimen of black massive silicate of beryl and rare earths – gadolinite .
Prismatine
Columnar crystals of grey, very rare borosilicate prismatine (described only in 9 locations) in a white to beige talc.
Hessonite, aquamarine
Unusuall combination of hessonite garnet and aquamarine
Cuprite
Cubes of dark metal-shiny cuprite octahedra. The largest crystal is 2 cm large.
Hydrocerussite, lead
Hessonite, diopside
Cluster of lustrous brownish-orange hessonite crystals in gray diopside. The largest crystal is 12 mm in size.
Cuprite (chalcotrichite)
Historical specimen of a growth of ruby-red cuprite approximately 2 × 1 cm in size .
Astrophyllite.
Historical sample of dark brown mica-like cleavage crystals of Astrophyllite in light feldspar. The elongated black crystal in the center […]
Aenigmatite
Black well-cleavable crystal of silky lustrous aenigmatite enveloped by fibrous aggregates of astrophyllite in a greenish microcline. The crystal is […]
Samarskite
Black resinous shiny streaks of yttrium and niobium oxide in pegmatite. The largest samarskite is 1 cm in size.
Pyrite, rock crystal, galena
Golden pyrite crystals up to 1 cm in size with dark gray galena crystals and small quartz crystals.
Emerald
Two crystals of green Beryl, each approximately 1 cm large .