Vermiculite Asbestos, No Today S Vermiculite Doesn T Contain Asbestos Laidback Gardener

Vermiculite itself has not been shown to be a health problem.

Lol doll coloring sheets. If you must remove any asbestos containing vermiculite from your home you should hire a licensed asbestos contractor. If asbestos is not in the air it is not dangerous to your lungs. Exfoliation occurs when the mineral is heated sufficiently and commercial furnaces can routinely produce this effect.

There was also a deposit of asbestos at that mine so the vermiculite from libby was contaminated with asbestos. Asbestos was found in all of the nearly two dozen samples from libby but little or none was found in the vermiculite from the other four sites. Vermiculite asbestos became a concern after residents of libby montana were sickened by a vermiculite mine there.

If you need to test a construction material other than a vermiculite please visit a different page. Dig through the insulation layer and scoop a sample from the floor. A review of the mineralogy of vermiculite and its fundamental differences to asbestos explain why.

1 vermiculite the mineral vermiculite is a naturally occurring sheet silicate mineral usually formed by the. As long as this kind of vermiculite based insulation remains undisturbed behind intact walls or in attic spaces and does not become airborne it should not be a concern. Vermiculite is a hydrous phyllosilicate mineral which undergoes significant expansion when heated.

All vermiculite ores contain a range of other minerals that were formed along with the vermiculite in the rock. Remember asbestos is much heavier than the vermiculite and it slowly sinks close to the bottom of the insulation layer. Once the asbestos was discovered the mine closed in 1990.

However some vermiculite insulation contained asbestos fibres which can cause problems if inhaled. Vermiculite forms by the weathering or hydrothermal alteration of biotite or phlogopite. Concerns about asbestos contaminated vermiculite insulation a mine near libby montana was the source of over 70 percent of all vermiculite sold in the united states from 1919 to 1990.

Periodic tests have been carried out on other vermiculite mines since with no signs of asbestos. Vermiculite mostly found in attics the vermiculite from libby is part of the longest man made environmental disaster in american history. People who used vermiculite products such as for attic insulation and landscaping supplies from zonolite in north america were advised of their options at the time.

Vermiculite ores from some sources have been found to contain asbestos minerals but asbestos is not intrinsic to vermiculite and only a few ore bodies have been found to contain more than tiny trace amounts. Vermiculite is not asbestos there are no real causes for concern about health risks from vermiculite. Vermiculite is used in some potting soil for plant growth and it appears as bright gold or silver flakes.

Large commercial vermiculite mines currently exist in the united states of america.