As of 2006, the mineral industry of continued to be limited to the production of such construction materials as clay, sand and gravel, and crushed stone for local consumption.Thomas R. Yager
"The Mineral Industries of the Indian Ocean Islands"
. ''2006 Minerals Yearbook''.

U.S. Geological Survey The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and ...

(October 2007). ''This article incorporates text from this U.S. government source, which is in the

public domain The public domain (PD) consists of all the creative work to which no exclusive intellectual property rights apply. Those rights may have expired, been forfeited, expressly waived, or may be inapplicable. Because those rights have expired, ...

''. Mineral production data continued to be unavailable as of 2006. The Comoros did not play a significant role in the world's production or consumption of minerals. The demand for cement, steel, and petroleum products was met through imports. In 2005, imports of petroleum products accounted for 12% of total imports; cement, 8%; and iron and steel, nearly 4%. Imports of cement amounted to 55,867 metric tons (t); petroleum products, 20,487 t; and iron and steel, 3,678 t.

References

Comoros Economy of the Comoros Comoros {{Comoros-geo-stub