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What causes all the variations in Mex-lace structure as opposed to just a regular agate?

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There are multiple levels of convolutions in this form. How did it evolve?

asked Feb 23 by arbayowling (570 points)

1 Answer

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Most agates have the banding in patterns, though Mexican Lace Agate does have more typical curvature in the banding, caused by its formation. The banding is formed by multiple deposition layers during the formation, with each layer having a slight distinction from the previous one.
answered Apr 30 by hershel (49,750 points)