This coin brings the bottom to the top by ingeniously illustrating the vibrant world beneath our feet. A world on which we depend but are barely even aware of, the Edaphon is as diverse as a rainforest and is both the foundation of our existence and the key to our planet’s future.
Twenty years ago, through the combination of silver and niobium, Münze Österreich achieved an internationally recognised innovation in which wonderful colours arise on niobium through light refraction on a very thin, transparent oxide layer.
The unique appearance and beauty of our Silver Niobium coins is a major factor in their success. Another is that their two-tone niobium core and silver outer ring are the ideal environment in which to explore fittingly fascinating and contemporary themes.
The beauty of niobium is that colours do not need to be applied to it as they are created during the oxidation process. By means of ‘anodized oxidation’, a very thin oxide layer is produced on the coin surface and subsequent light refraction enables different colours to arise.
With each Silver Niobium coin being completely different from the last, both in terms of its colour and subject matter, it is little wonder that they have won numerous international award and are extremely popular as gifts and with coin collectors.
So, it is hardly surprising that many of them are sold out and can only be found for sale in the secondary coin market, although often at a considerable premium. We do have the last three editions still in stock, however.
| Quality | Special Uncirculated |
| Face Value | 25 Euro |
| Diameter | 34 mm |
| Alloy | Silver Ag 900, Niobium |
| Weight | 16.50 g |
Among the most spectacular of Münze Österreich products are our innovative Silver Niobium coins.
