How do I get rid of asbestos, uranium or mercury minerals safely?
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Call before you throw anything out. For mercury-bearing specimens, EPA points households to state, county and city household hazardous waste collection programs [1]. For asbestos, EPA's federal rule leaves homes of four or fewer units to state and local agencies, which may set stricter standards [2], so your state or local asbestos program decides. For uranium and thorium specimens, the Nuclear Regulatory Commission exempts unrefined ore from licensing [3] but says nothing about household disposal, so ask your state radiation control agency. Until you have an answer, keep the specimen sealed, labeled and boxed, and do not mail it.
Before you do anything: identify, seal, label
Most hazardous specimens come to people in old collections, often with no labels. Three steps make every later decision easier and safer.
- Identify what you have, as far as you can. The species and hazards are listed on which minerals are dangerous. Old labels, catalog cards and the collector's notes often name the species.
- Seal it. Asbestiform specimens go into a sealable, clearly marked bag [4]. Mercury-bearing items go inside a larger container with a tight-fitting lid, cushioned with kitty litter or oil-absorbent material [1]. Radioactive specimens go in a closed box handled with latex or nitrile gloves [5].
- Label it. EPA tells households to label a mercury container as mercury and not to be opened [1]. Use the same idea for the others: species, hazard, and "do not open" or "do not cut."
Keep sealed hazardous specimens out of reach of children and pets, as EPA advises for mercury [1], while you work out where they will go.
Route by material
| Material | Federal position, as the agency states it | Who to call first | Notes |
|---|---|---|---|
| Cinnabar, specimens with liquid mercury, mercury-bearing items | EPA says many states and local agencies run collection or exchange programs, and some counties and cities run household hazardous waste collections [1] | Your county or city household hazardous waste program | EPA's transport advice: in a cardboard box, secured so it cannot tip, in a trunk or pickup bed, or with ventilation if it must ride in the passenger compartment [1] |
| Asbestiform minerals | The asbestos NESHAP excludes "residential buildings that have four or fewer dwelling units"; state and local agencies may set stricter standards [2] | Your state or local asbestos program; your household hazardous waste program | No federal source read for this page addresses a single mineral specimen |
| Uranium and thorium minerals | 10 CFR 40.13(b) exempts possession and transfer of "unrefined and unprocessed ore containing source material," provided it is not refined or processed [3] | Your state radiation control agency | The exemption is about licensing, not disposal; ask before discarding |
| Arsenic, lead, antimony and other toxic-element minerals | No federal guidance specific to specimens was found | Your household hazardous waste program | Ask whether the program accepts mineral specimens and how it wants them packed |
Write down the date, who you spoke to and what they said, and keep it with your collection records. If you are an executor clearing a house, that note is your record that you handled the material properly.
Donating instead of discarding
A well-labeled hazardous specimen can be a useful one: a documented uraninite from a historic mine, a chrysotile from a closed asbestos district, a cinnabar from a famous mercury locality. Museums, university geology departments and some mineral clubs may want such pieces for teaching or research. Without a label and locality a specimen is of little use to them, so expect to be asked for both.
Call before you bring anything. Describe the specimen and its label, say what the hazard is, and ask whether they accept it. Do not leave hazardous specimens on a doorstep or in a club donation box. If the collection also holds valuable non-hazardous material, the options for selling or donating the whole collection are on selling an inherited collection.
What not to do
- Do not mail it to anyone, including a museum or a buyer, without first checking postal and carrier rules. Radioactive and asbestiform material is restricted; the rules are on shipping radioactive, asbestos and mercury minerals.
- Do not pour mercury down a drain. EPA warns it can lodge in plumbing and pollute septic tanks or sewage treatment plants [6].
- Do not vacuum or sweep spilled mercury. EPA says a vacuum puts mercury into the air and a broom breaks it into smaller droplets [6].
- Do not break, crush or cut a specimen to make it smaller or to fit a container. That is exactly when asbestos releases fibers [7] and when toxic or radioactive dust is made.
- Do not put it loose in household trash or a dumpster before asking your local program. Even where the trash is the answer, the agency may tell you how to bag and label it.
- Do not bury it or leave it at a collecting site. Returning a hazardous specimen to the field moves the problem to the next person.
Cleaning up after a spill or a broken specimen
If a cinnabar specimen has shed mercury beads, EPA's household cleanup steps apply: get people and pets out, open windows to the outside, gather beads with cardboard or a squeegee, collect them onto a damp paper towel with an eyedropper, seal and label the bag, and ask your local health department, municipal waste authority or fire department about disposal; keep the area ventilated to the outside for at least 24 hours [6]. For more mercury than a thermometer holds, EPA has separate guidance for larger spills [6].
If an asbestiform specimen has crumbled, do not sweep, brush or vacuum it. NPS guidance keeps asbestos wet with a fine mist when staff take samples [7], but it gives no household cleanup method; close the box or container it is in, seal it in a bag without opening it, and call your asbestos program. For visible contamination in a room or a drawer, COG 2/11 says to use someone "equipped and trained" for asbestos work [7].
If someone may have been exposed, EPA's guidance lists the poison control center at 1 (800) 222-1222 and advises calling your physician [6].
After the hazardous pieces are gone
Clearing the hazardous specimens is usually the first job with an inherited or purchased collection. Once they are sealed, labeled and out, the rest of the collection can be sorted, valued and sold safely; start with selling an inherited collection.
References
- U.S. Environmental Protection Agency, *Storing, Transporting and Disposing of Mercury*, last updated April 13, 2026. https://www.epa.gov/mercury/storing-transporting-and-disposing-mercury
- U.S. Environmental Protection Agency, *Information for Owners and Managers of Buildings that Contain Asbestos*, last updated July 2, 2026. https://www.epa.gov/asbestos/information-owners-and-managers-buildings-contain-asbestos
- U.S. Nuclear Regulatory Commission, 10 CFR 40.13, *Unimportant quantities of source material*, eCFR, up to date as of October 19, 2026. https://www.ecfr.gov/current/title-10/chapter-I/part-40/subject-group-ECFR4f6487a7eccf876/section-40.13
- National Park Service, Conserve O Gram 11/11, *Health and Safety Issues with Geological Specimens*, Greg McDonald, September 2006. https://www.nps.gov/subjects/museums/upload/11-11_508.pdf
- National Park Service, Conserve O Gram 11/10, *Radioactive Minerals*, Greg McDonald, September 2006. https://nps.gov/subjects/museums/upload/11-10_508.pdf
- U.S. Environmental Protection Agency, *What to Do if a Mercury Thermometer Breaks*, last updated November 14, 2025. https://www.epa.gov/mercury/what-do-if-mercury-thermometer-breaks
- National Park Service, Conserve O Gram 2/11, *Health and Safety Risks of Asbestos*, Diane Vogt-O'Connor, September 1999. https://nps.gov/subjects/museums/upload/02-11_508.pdf
