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Coralloid speleothems (Royal-C) from Royal Palm Cave
(A) Field image from the coralloids; (B) Air-dried coralloid sample depicting gray to orange color and white coatings; (C and D) micro-CT images of the internal structure of the coralloids showing internal layering with different composition, mainly Ca-rich minerals; (E,F) FESEM images showing botryoidal structure, and (G) EDS spectrum obtained from the area marked on panel F (spectrum 2).
