Kaleidoscope Jasper, or is it?

Rob Webster arrived at the WCGMC February workshop with 11 pounds of colorful rock he had recently acquired and slabbed.  He had purchased it online, where it had been identified as “kaleidoscope jasper” (or agate) from Utah.  It did not, however, appear to be jasper and Rob said it had cut really easily.   So, I took a picture and went home to investigate.

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