Scientist holding sample of raw crystal in hands. Male hand holding a fragment of rock crystal mineral.
Scientist holds a chemical sample bottle. Doctor hand in medical glove with clinical chemistry samples putting them to centrifuge
doctor or laboratory scientist holding a blood sample
Medium shot of biomedical scientist in gloves, goggles and face mask holding test tube with blood sample
Geologist braking coal sample with pick axe mining exploration
Geologist braking coal sample with pick axe mining exploration
Close up of Geologist looking at coal sample mining mineral exploration
Geologist braking coal sample with pick axe mining mineral exploration
Gloved hand of modern scientist or microbiologist holding flask where he putting tiny sample of lab-grown meat during clinical experiment in laboratory
Hand holding petri dish. Tweezers and piece of paper. Take a sample for experiment. Task for a scientist.
Close up shot of scientists hand in rubber gloves holding white laboratory rat, other scientist looking at it
Liquid in a beaker. Hand in glove holding flask. Work in a laboratory. Scientist is developing medicine.