crystalline mineral formation

5184 × 3456

Agate stone cross-section

1920 × 1200

Close-up of orange agate geode

1920 × 1200

Blue Agate Geode

958 × 614

Green Mineral Cluster — Neutral

2660 × 1724

Yellow mineral crystals on rock

4368 × 2912

Red crystal on white matrix

1763 × 1254

Red topaz crystal on rock

1280 × 950

Pyrite and halite mineral cluster

3299 × 2806

pyrite mineral specimen

1984 × 1768

pyrite mineral cluster

2570 × 1710

Amethyst Crystal Cluster — Purple, Neutral

1600 × 1200