green mineral cluster

3677 × 2781

Purple crystal specimen

4288 × 2848

blue crystal mineral specimen

817 × 1309

yellow crystal mineral specimen

1774 × 1800

Blue crystal mineral specimen

3072 × 2304

Mineral specimen with black and yellow crystals

2000 × 1550

mineral specimen with crystals

2319 × 1770

blue mineral specimen

3023 × 2602

crystalline mineral specimen

2560 × 1920

green mineral specimen

1600 × 900

Brown quartz crystal cluster

2296 × 3543

Red crystals on rock specimen

2760 × 1938

Calcite crystal formation

3072 × 2304

yellow mineral crystal cluster

1296 × 1608

Malachite mineral formation

3072 × 2304

Amethyst and turquoise crystal cluster

1594 × 2126

Blue aquamarine crystal cluster

1800 × 1784

Bismuth crystal specimen

1024 × 768

hand holding a rock sample

2848 × 1602

Close-up of agate stone

1920 × 1200