Drahý opál
Nádherně zbarvený opál ze známé etiopské lokality.
Fluorite
Yellow-orange cubic crystals of transparent fluorite up to 12 mm in size grown on a black base.
Vanadinite
Druse of shiny vanadinite crystals up to 1 cm large .
Dioptase
Intensely green crystals of glossy dioptase up to 2 mm in size with fibrous malachite needles.
Gold
Gold lavishly grown on quartz tinted green by secondary copper minerals. The aggregate at the top of the sample measures […]
Gold, shattuckite
Unusual and very elegant combination of aggregates of pure gold in a contrasting intensely blue Shattuckite of gemstone quality. The […]
Zlato
Jeden a půl milimetru velký agregát zlata v křemenné žíle se sekundárními minerály mědi.
Argentopyrite, proustite
A beautiful sample of red, lustrous proustit crystals on a contrasting snow-white calcite, on which dark, slightly iridescent argentopyrit tablets […]
Sapphirine
A perfect example of a rare sapphirine in the form of flat, extremely large crystals that come from new finds […]
Sapphirine
A perfect example of a rare sapphirine in the form of flat, extremely large crystals that come from new discoveries […]
Demantoid
Estetická ukázka vysoce ceněných sytě zelených průhledných a vysoce lesklých krystalů zelené odrůdy granátu andraditu, tzv. démantoidu. Vzorek pochází ze […]
Grandidierite
A perfect, unusually rich specimen of grandidierite from Madagascar that weighs over 400 grams, from where it was first described […]