|Country: Austria||Metal Purity: 900||Box: Yes|
|Year of Issue: 2017||Weight: 15.5 g||CoA: Yes|
|Face Value: 25 euro||Dimensions: 34||Coin Accent: Coloring|
|Mintage quantity: 65000 pcs|
Following the exploration of the cosmos in 2015, the latest edition in the Austrian Mint’s innovative and ingenious two-tone Silver Niobium series embarks on a technological journey in the opposite direction – to the microcosmos. The Microcosm coin is struck from 9 g silver 900 combined with niobium, the total weight making up 16,5 g. The coin is 34 mm in diameter and comes housed in a special case with a numbered CoA and a protective slipcase.
The coins of the Silver Niobium series have been employing the combination of silver and niobium to explore fittingly fascinating themes. What makes these coins so special is the fact that their niobium tones arise without the application of colour, purely through light refraction on an extremely thin, transparent oxide layer. Microcosm, like all the other coins in the series,truly glistens with knowledge.
A butterfly is found in the raspberry-red and grass-green niobium centre of the coin’s obverse. But the journey of discovery really begins on the coin’s reverse, where a microscopic view of a butterfly wing is shown at the top of the centre. Moving clockwise we go even deeper with the help of an electron microscope. But that is not the end of the expedition: the bottom half of the coin shows a cell, its structure and even its core.