Agate stone cross-section

1920 × 1200

Tree Growth Rings — Brown, Natural

2950 × 2094

Blue-green Crystals

1272 × 1024

Agate Stone Cross-section — Brown

1920 × 1200

Sliced Agate Geode

1500 × 938

Layered Agate Stone — Red, Natural

1920 × 1200

Blue Agate Slice

1242 × 2208

Layered Agate Stone

1500 × 938

Close-up of agate stone

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Cross-section of Earth — Brown

1920 × 1080

Geode Cross-section

3840 × 2160

Ammonite fossil cross-sections

1920 × 1200