Dioptase
Intensely green crystals of glossy dioptase up to 2 mm in size with fibrous malachite needles.
Zlato
Zlato bohatě narostlé na křemeni zbarveném zeleně sekundárními minerály mědi. Agregát na vršku vzorku má rozměry 13 × 3 mm.
Sapphirine
A perfect example of a rare sapphirine in the form of flat, extremely large crystals that come from new finds […]
Demantoid
Estetická ukázka vysoce ceněných sytě zelených průhledných a vysoce lesklých krystalů zelené odrůdy granátu andraditu, tzv. démantoidu. Vzorek pochází ze […]
Erythrite, skutterudite
Aesthetic samples of wine-red bladed crystals of erythrine on massive skutterudite.
Ammonite of the genus Cleoniceras
An exceptionally aesthetic slice of an ammonite of the genus Cleoniceras with segments filled with calcite crystals growing into the […]
Erythrite, skutterudite
A beautiful example of wine-red crystals of cobalt arsenate grown into a cavity in massive Skutterudite. The longest erythrite crystals […]
Xantokon
Aesthetic specimen of intensely red, unusually elongated crystals of proustit with crystals of the rare orange xanthocon (proustit dimorph). The […]
Xantokon, Proustit
Crystals of the rare orange Xanthocon with its dimorph Proustit grown on contrasting white limestone. Xanthocon crystals are about 0.5 […]
Celestine
Celestine geode with clear glossy crystals up to 2 cm large.
Xantokon, proustit
Orange crystals of the rare xanthocon with intensely red proustit crystals up to 5 mm in size.
Proustit
Intensely red Proustit crystals up to 4 mm in size.