Well, I have not found too many images of an island with two different counter materials (unless you change heights). This was one of the few I found. That probably means that this option should be scratched off the list.
[Traditional Kitchen[(https://www.houzz.com/photos/traditional-kitchen-ideas-phbr1-bp~t_709~s_2107) by Chevy Chase Kitchen & Bath Designers Jennifer Gilmer Kitchen & Bath
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