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At 23:51:11 UTC Mastcam Left captured these decidedly intriguing looking rocks.
In addition to the usual layered and finely laminated structure, the rock in the upper left shows a spongy detail almost “coral-like” in the upper part.
In the part exposed to the sun, you can see detail regular layers in the lower part have the intrusion of something complex even if not identifiable with the forms known to us, a fossil?
Note also the greenish spots visible here and there on the sand and partly on the rocks.
The original image is a black and white encoding of the Bayer mask that has been converted to color through a process called “debayering” or “demosaicing”. In addition, the photo has undergone a reduction of noise due to Jpeg compression, white balance and a slight increase in microcontrast and color saturation in order to make the colors more similar to what the human eye would see.

Original image:

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