Pseudomalachite

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Pseudomalachite is a relatively uncommon, secondary copper phosphate found in the oxidized zones of copper deposits. This is a rich and fine, 3-dimensional carpet of bubbly, banded, forest-green pseudomalachite on gossan matrix from the well-known Miguel Vacas Mine of Portugal. The velvet pseudomalachite has moderate chatoyancy. Highly representative older material of the species and locale.