Benitoit
Velmi bohatá ukázka tmavě modrých, průsvitných krystalů velmi vzácného silikátu barya a titanu – benitoitu z typové lokality. Největší krystal […]
Herkimer Diamond Crystal
An aggregate of two perfectly bounded crystals of a very pure glossy quartz with inclusions. These quartz crystals are nicknamed […]
Lazulite
Rich specimen of intensely shiny, deep blue Lazulite crystals growing into a cavity together with Quartz. The largest Lazulite crystal […]
Lazulite, Siderite
Increase of very shiny crystals of saturated blue Lazulite with ochre crystals of Siderite. The largest crystals of Lazulite are […]
Calaverite (roasted ore)
An interesting sample of gold ore originally composed of gold telluride – calaverite, which was subsequently subjected to a heat […]
Amethyst
Amethyst crystal clusters with a pale purple hue, where a 5 cm long crystal forms a skeletal scepter.
Copper in gypsum
Beautiful dendritic, thin crystals of pure copper in a clear gypsum crystal.
Copper
Native Copper flake.
Pyrite
Radiálí agregát pyritu tvořící tzv. “pyritové slunce”.
Linarite
Crystals of rare intensely blue Linarite. The area covered with crystals measures 15 mm × 8 mm.
Benitoite
Gorgeous, dark blue crystals of a rare silicate of barium and titanium up to 18 mm in size.
Lazulite
A double-sided specimen featuring rich blue, glossy lazulite crystals. On one side, lazulite crystals dominate, up to 10 mm in […]