green and yellow mineral specimen

1024 × 716

green mineral cluster

3677 × 2781

Purple crystal specimen

4288 × 2848

green mineral crystal cluster

3311 × 4061

blue crystal mineral specimen

817 × 1309

yellow crystal mineral specimen

1774 × 1800

Blue crystal mineral specimen

3072 × 2304

Blue Sapphire Crystal

1000 × 744

pyrite mineral specimen

2048 × 1536

Faceted mineral specimen

2122 × 1014

Mineral specimen with black and yellow crystals

2000 × 1550

mineral specimen with crystals

2319 × 1770