Plate 11
Cuprite, the red crystals showing characteristic color, other showing the green tarnish of malachite
Malachite (green) and azurite (blue), the two minerals shown together as they very commonly occur
Cuprite, the red crystals showing characteristic color, other showing the green tarnish of malachite
Malachite (green) and azurite (blue), the two minerals shown together as they very commonly occur