green and yellow mineral specimen

1024 × 716

green mineral cluster

3677 × 2781

Purple Crystal Cluster — Dramatic, Photograph

3840 × 3072

Calcite crystal formation

3072 × 2304

blue crystal mineral specimen

3072 × 2304

Purple Fluorite Crystals

3200 × 1754

Silver Crystals Cluster

4096 × 2559

Blue Mineral Cluster

3008 × 2000

Large Quartz Crystal

1280 × 946

Red and black mineral specimen

1400 × 1171

blue crystal cluster

1920 × 1200

Purple and Blue Crystal

3744 × 5616