level 3 & stairs leading down to level 4 (crystal onyx cave, near cave city, kentucky, usa) 2 color palette

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#191931 #6D5446 #543B37 #A66F3F #BC9F80

related tags: 1F1F2B 4D403E 543B37 6D5446 8C7059 A66F3F AD9E8F BC9F80 calcite calcium carbonate carbonates cave caves city crystal dissolution genevieve kentucky level limestone limestones mississippian onyx pennyroyal plateau prewitts ste 3 191931 635750