Close-up of agate stone

1920 × 1200

hand holding a rock sample

2848 × 1602

green mineral crystal cluster

3311 × 4061

hand holding a fern leaf

5184 × 3456

Mineral Crystals on Rock

2319 × 1770

Copper Mineral Cluster

4288 × 2848

Rock with Mineral Veins

4618 × 3356

Blue and Green Mineral Formation — Natural

1920 × 991

Gold and Quartz Mineral

1198 × 960

pyrite mineral specimen

2048 × 1536

Faceted mineral specimen

2122 × 1014

Mineral specimen with black and yellow crystals

2000 × 1550