# Cork: properties and identification clues

Canonical: https://materiumapp.com/materials/cork/

By Materium. Published 2026-10-19. English.

Cork comes from the bark of the cork oak, Quercus suber. Its cellular structure contributes to its low weight, compressibility and insulating qualities. Finished products range from natural cork pieces to granules formed into sheets and other shapes.

- Origin: Cork oak bark
- Common examples: Stoppers, coasters and surface coverings
- Useful detail: Natural bark texture or bonded granules

## What to look for

Look at the exposed edge as well as the top. A coaster may show granules throughout, while a layered product can have a cork surface over another backing. Record the visible layers before describing the whole object as one material.

## Make a useful comparison

Natural cork and products made from cork granules can have different constructions. Product documentation can explain binders, coatings or backing layers that are not clear in a surface photograph.

## Explore it with Materium

Explore a cork coaster with Materium using both a top view and an edge detail. Keep the product description as supporting context. This creates a useful personal reference for comparing natural textures and composite constructions.

[How Materium works](https://materiumapp.com/how-materium-works/). Reference sources are separate from the app’s generated analysis.

## Care, reuse and recycling context

Cork can be recovered through suitable collection schemes, but check the product form and any added materials. A collection for natural wine stoppers may have different rules from one for bonded sheets or flooring.

## Related materials

- [Cotton](https://materiumapp.com/materials/cotton/)

## Sources

Sources checked 2026-10-19.

- [APCOR — cork origin, structure and properties (Portuguese industry association)](https://apcor.pt/pt/a-cortica)

Educational content prepared with AI assistance. [Editorial policy](https://materiumapp.com/editorial/).

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