* Copper: significant mining operations in the Moa and Matahambre regions.
* Nickel: extensive reserves with major deposits in theNicaro, Punta Gorda, and Moa regions.
* Chromium: reserves mainly located in the Camagüey and Holguín provinces.
* Iron ore: small reserves in the Pinar del Río, Villa Clara, and Holguín provinces.
nonmetallic minerals
* Marble: abundant deposits in the Havana, Matanzas, and Pinar del Río provinces.
* Limestone: significant reserves in the Sierra del Rosario, Sierra Maestra, and Sancti Spíritus areas.
* Dolomite: deposits in the Havana and Matanzas provinces.
* Gypsum: deposits in the Pinar del Río, Havana, and Matanzas provinces.
* Bentonite: deposits in the Havana, Matanzas, and Pinar del Río provinces.
* Silica: deposits in the Pinar del Río, Villa Clara, and Cienfuegos provinces.
* Feldspar: deposits in the Pinar del Río, Matanzas, and Havana provinces.
* Quartz: deposits in the Pinar del Río, Matanzas, and Cienfuegos provinces.