My original tumblr post was here. This image was originally posted on Tumblr by thewindowofthesummerhouse. Wild Planet Love added the attribution “Virgil Finlay (born July 23rd, 1914).” It comes to us via The Vault of Retro Sci-Fi.
Tumblr favorite #2727: Crystalline surface
If what I can track down using Bing is right, this may illustrate J. G. Ballard’s “The Crystal World.” I couldn’t track down what it was published in.
There’s quite a lot of Virgil Finlay online—well worth a look or two.