Turmalín - paraíba
Nádherný segment krystalu turmalínu intenzivně modré barvy ve velmi vysoké brousitelné kvalitě. Tento typ vzácného turmalínu, u kterého je modrá […]
Goshenite
Two crystals of clear, in some places even transparent, gem-quality beryl. The larger crystal, measuring 4 cm, is naturally damaged […]
Dioptase
Intensely green crystals of glossy dioptase up to 2 mm in size with fibrous malachite needles.
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
Hessonite, diopside
Cluster of lustrous brownish-orange hessonite crystals in gray diopside. The largest crystal is 12 mm in size.
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 […]
Astrophyllite.
Historical sample of dark brown mica-like cleavage crystals of Astrophyllite in light feldspar. The elongated black crystal in the center […]
Andradit
Increase in shiny, translucent yellow-green andradite crystals. The size of the crystals is approximately 3 mm.
Aenigmatite
Black well-cleavable crystal of silky lustrous aenigmatite enveloped by fibrous aggregates of astrophyllite in a greenish microcline. The crystal is […]