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20 Euros Protected Opalfield - Dubnícke Mines
| Uitgever | National Bank of Slovakia |
|---|---|
| Jaar | 2014 |
| Type | Non-circulating coin |
| Waarde | Log in om details te zien |
| Valuta | Log in om details te zien |
| Samenstelling | Log in om details te zien |
| Gewicht | Log in om details te zien |
| Diameter | Log in om details te zien |
| Dikte | Log in om details te zien |
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| Techniek | Log in om details te zien |
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| Beschrijving voorzijde | Log in om details te zien |
|---|---|
| Schrift voorzijde | Log in om details te zien |
| Opschrift voorzijde | Log in om details te zien |
| Beschrijving keerzijde | The reverse depicts a panoramic scene celebrating the Dubník opal mining site near Červenica, Slovakia. At the upper field, a stylised raw opal specimen is shown alongside a geometric representation of the mine's geological crystal structure, rendered in incuse line work against a frosted background. The lower portion of the field features a relief depiction of the historic mine building, a squat masonry structure with an arched entrance. The legend NÁLEZISKO OPÁLOV arcs along the upper left rim, DUBNÍCKE BANE along the upper right, and CHRÁNENÝ AREÁL appears in two lines across the centre field. The stylised initials MP of designer Mária Poldaufová and the Kremnica Mint mark are located at the lower edge of the coin. |
| Schrift keerzijde | Log in om details te zien |
| Opschrift keerzijde | Log in om details te zien |
| Rand | Lettered |
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| Oplage | Log in om details te zien |
| Aanvullende informatie |
Issued as part of Slovakia's ongoing natural heritage series, this coin commemorates the opal deposits near Dubník in eastern Slovakia — historically the most significant precious opal source in Europe and, for centuries, the primary supplier to royal courts and gem markets across the continent. Hungarian nobles controlled the mines intensively from the medieval period onward, and the deposit's decline in commercial relevance only accelerated after significant Australian opal discoveries in the late 19th century flooded global supply.
The "protected opalfield" designation reflects Slovakia's formal geological protection of the Dubník site under national heritage law.