Buy the NFT at OpenSea (Polygon with no gas fees):
The art is made of a 102 mm Beryl from Evje, Agder, Norway
Picture size (pixels)
4088x3250 (3,0 Mb)
Energy version (giveaway NFT to the 50% first buyers, not resale)
Beryl is a gem, and the green variant is called Emerald.
This specimen used for the art is 102x76x80 mm (663 gr.) and was found in Brattekleiv, Evje og Hornnes, Agder, Norway
It is not gem clear, so the price of the physical specimen is not very high. If you put stronger light to it, you will see that is parly translucent. It is very cool as it has 2 hexagonal crystals that have grown parallelly as 2 green horns growning out of the matrix.
You will also see some black dendrites (tree-like pattern) on the motherstone. The last picture below is taken with strong light
You can see the location here:
This is not far away from where I live. I found a beryl here myself when I was a kid, but this one I bought at a local fair around 2010-2015.
According to wikipedia, the first eyeglasses were constructed in 13th-century Italy, and the lenses were made of beryl (or of rock crystal) as glass could not be made clear enough. Consequently, glasses were named Brillen in German (or Brille in Norwegian).
Video/pictures of the specimen used for the NFT: