Republic of the Congo

Minerals Found Here

Dioptase

Good

CuSiO₃·H₂O• Trigonal

Rossmanite

Average

◻(LiAl₂)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)• Trigonal

Fornacite

Average

Pb₂Cu(CrO₄)(AsO₄)(OH)• Monoclinic

Occurs as confused groups of prismatic crystals.