green and yellow mineral specimen

1024 × 716

green mineral cluster

3677 × 2781

Calcite crystal formation

3072 × 2304

blue crystal mineral specimen

3072 × 2304

Purple Fluorite Crystals

3200 × 1754

Blue Mineral Cluster

3008 × 2000

Large Quartz Crystal

1280 × 946

Red and black mineral specimen

1400 × 1171

Clear Quartz Crystal Cluster — White

2320 × 1827

Blue Crystal Cluster — Dramatic

800 × 600

green crystal cluster

3252 × 1736

crystalline mineral fragments

1757 × 1181