raw amethyst crystal

1024 × 778

Amethyst geode cross-section

2272 × 1704

vibrant amethyst crystal cluster

2048 × 1654

Amethyst crystal cluster

3072 × 2048

Amethyst crystal cluster

3200 × 1754

close-up of crystal formation

4320 × 3240

Black and Green Crystals

1280 × 853

purple quartz crystal

4288 × 2848

Blue Agate Geode

958 × 614

Blue agate geode slice

1863 × 1867

Gold-bearing Rock Specimen

800 × 600

Amethyst Crystal Cluster — Purple, Neutral

1600 × 1200