Perhaps you are probably familiar with the brochantite crystals from Milpillas, Sonora, Mexico. They are best brochantites in the world. You might think this is one of those brochantites, but it is NOT. THis piece is from Morocco! It is a rectangular block of limonite matrix, partially coated light green, botryoidal malachite and dark green acicular brochantite crystals. And these brochantites are actually large for the species: some of them are 4+ mm long. If you collect copper minerals OR Morocco, or just pretty things, this is a great specimen.