Superb combo specimen of very rare Cuproromeite growing on twinned Tetrahedrite crystals with alteration by green Malachite from El Coriellu mine, Spain. Minor Cuproromeite, originally named Partzite, replaces partially the Tetrahedrite crystal at the tip. It is yellowish. The Tetrahedrite crystals to 13mm have sharp shape. They show penetration twinning. Green Malachite alternates the faces of the Tetrahedrite. In very good condition - some natural imperfections and small contacts. On acrylic base.

Splendid!