copper nugget mineral specimen

2272 × 1704

Blue Mineral Specimen — Dramatic, Photograph

2504 × 1912

Green Mineral Cluster — Natural

2592 × 1944

green mineral specimen

1600 × 900

green mineral crystal cluster

3311 × 4061

Copper Mineral Cluster

4288 × 2848

Gold Nugget with Quartz

3819 × 3667

green and brown mineral specimen

1024 × 802

Copper Mineral Specimen — Brown

3072 × 2304

Red Crystals on Rock — Orange

1923 × 1301

Mineral Crystals on Rock

2319 × 1770

pyrite mineral specimen

2048 × 1536