Is it safe to keep meteorites in a bedroom?
Yes. Meteorites are safe to keep at home, including in bedrooms. Their natural radioactivity is extremely low, and they give off no harmful gases.
Meteorites are safe to keep at home, including in children's bedrooms, provided basic sensible precautions are followed.
Radioactivity. All rocks contain tiny amounts of naturally radioactive elements, such as potassium, uranium and thorium. Meteorites also contain small amounts of radioactive isotopes made by cosmic rays, but these are extremely weak, and most short-lived ones decay within months or years of the fall. The radiation from a meteorite is comparable to, or lower than, that of many ordinary rocks such as granite, and far less than the natural background radiation we all receive every day.
No harmful gases. Meteorites do not give off harmful gases. Some fresh falls have been reported to have a slight smell when first collected, but this fades.
Physical safety. Heavy iron meteorites should be placed where they cannot fall and cause injury, especially on high shelves. Thin slices can have sharp edges, so handle with care. Small pieces should be kept away from very young children, who might put them in their mouths.
Hygiene. Wash hands after handling specimens, especially those that may have soil on them.
Protecting the meteorite. Bedrooms can have changing humidity, for example from drying clothes or breathing at night. Keep iron meteorites in closed containers with silica gel to prevent rust.
Enjoyment. Having a meteorite nearby can inspire curiosity and learning. Many young scientists began their interest with a meteorite on a bedroom shelf.
So a meteorite in a bedroom is safe and can be a great source of wonder.