copper mineral specimen

4288 × 2848

copper nugget mineral specimen

2272 × 1704

Fossilized Pyrite Specimens

1024 × 768

Copper Mineral Cluster

4288 × 2848

Blue mineral specimen in display

1024 × 726

Blue Mineral Cluster

3008 × 2000

Mineral specimen display

3072 × 2304

Quartz Mineral Specimen

1024 × 768

Blue Mineral Specimen — Dramatic, Photograph

2504 × 1912

green and red mineral specimen

2569 × 2098

Green Mineral Cluster — Natural

2592 × 1944

Preserved giant octopus specimen

1276 × 1952