Gadolinit
Vzorek černého masivního silikátu berylia a vzácných zemin – gadolinitu.
Prismatin
Sloupcovité krystaly šedého, velmi vzácného borosilikátu prismatinitu (popsán pouze na 9 lokalitách) v bílo béžovém mastku.
Hessonite, Aquamarine
Unusuall combination of hessonite garnet and Aquamarine
Cuprite
Cubes of dark metal-shiny cuprite octahedra. The largest crystal is 2 cm large.
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, 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 .
Vivianite
Fan-shaped cluster of black shiny vivianite crystals up to 2.5 cm in size.