specimen

Transparent Frog Specimen — Green

1280 × 767

Hexagonal Mineral Crystal — Gray

4438 × 3605

Malachite Mineral Specimen

2746 × 2060

Yellow Crystal on Rock

2754 × 2927

Red and Black Mineral Cluster — Dramatic

1400 × 1171

Warning Sign in Lab

1920 × 1080

Blue and Green Mineral Cluster

1280 × 850

Alien Creature in Corridor — Green

1920 × 1080

Brown Spider on White Background

3782 × 3188

Fossilized Shark Tooth — Beige

2560 × 1600

Blue Morpho Butterfly — Light Blue

1034 × 778

Bird Eggs in Nest — Gray

2048 × 1536

Pyrite Mineral Cluster — Gray

1360 × 1024

Fossilized Pyrite Specimens

1024 × 768

Translucent Sea Creature — Red

800 × 600

Fossilized Feather

1280 × 800

Blue and Black Butterfly — Calm, Photograph, Wings

802 × 715

Yellow Crystal Skull

841 × 600

Green Crystals on Rock — Dramatic, Photograph

1280 × 914

Crystal Cluster on Matrix

1280 × 826

Dark Blue Crystals on Rock

1590 × 1024

Crystal Cluster on Rock

1280 × 837

Gold and Quartz Mineral

1198 × 960

Orange Mineral Crystal

800 × 600

Quartz and Citrine Cluster

800 × 600

Green and White Crystals

1280 × 963

Black and Green Crystals

1280 × 853

Blue Kyanite Crystal

1800 × 1317

Crystal Cluster with Citrine

1200 × 800

Yellow Mineral Crystals — Neutral

1020 × 698

Gold Mineral Specimen — Dramatic

1191 × 850

Red and White Crystals

1276 × 850

Red Crystals on Rock — Dramatic

4288 × 2848

Blue and Black Butterfly — Calm, Photograph

800 × 600

fossilized fish specimen

1600 × 1200

pyrite mineral specimen

2048 × 1536