This image is one of a series of Frank Melech's hosted on fotocommunity which unfortunately seems to be a German Language site -- though not unfortunate for German speakers.
This artist has managed to combine both silken soft and rocky rough textures -- blending both civilized and archaic.
His gallery will leave you mesmerized and wanting to come back for seconds. You won't be disappointed if you go to check out the rest of his work.
When I look at the thumbnail of the work it reminds me a lot of some large eye of a whale, though with slitted pupil. Looking at the full sized image you see a geode like feature hanging in space before an ocean-like background. The geode holds a stormy ocean with land in the background and a miniature version of itself leaps forth looking all the world like a sperm seeking its own way in the universe.
There are other works of this artist that are as grand. I find that there is much to see looking at the details. I wonder if the artist intended it to look like an eye at a distance? The textures are interesting and Mags mentioned to me similarities with polished paua or abalone.