macro, close-up photograph of a natural agate stone or geode.

abstract agate agates art banded bands beautiful beauty bright carving circle close-up closeup color colors complexity crystal darker darkness depth dessert detail displays distinctive earth elegant formation gem gemstone gemstones geode geological geology glass golden-brown hand internal intricate invertebrate isolated jewellery jewelry light lighting macro mineral natural nature night organ patterns photograph polished precious reflection rings rock running semi-precious shape single specimen stone striations striking structure texture textured tones transparent unique vibrant warm yellow