Microbead

Rarity: Common

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Notion

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Science and technology

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What Wikipedia says

Microbeads are manufactured solid plastic particles of less than one millimeter in their largest dimension. They are most frequently made of polyethylene but can be of other petrochemical plastics such as polypropylene and polystyrene.

Excerpt from the Wikipedia article “Microbead”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: University of Exeter from United Kingdom, CC BY 2.0, via Wikimedia Commons.