20933 - Beautiful Malachite Crystals on Barite Matrix - Taouz Barite Mines (Morocco) Dinosaur of siliceous nature

of siliceous nature

coarse channel fill

Perischoclonus

The shock-hatched regions show incipient recrystallization

as the Atlantic ocean was widening

20933 - Beautiful Malachite Crystals on Barite Matrix - Taouz Barite Mines (Morocco) Dinosaur of siliceous natureMalachite is a copper carbonate hydroxide mineral, with the formula Cu2CO3(OH)2. This opaque, green banded mineral crystallizes in the monoclinic crystal system, and most often forms botryoidal, fibrous, or stalagmitic masses, in fractures and spaces, deep underground, where the water table and hydrothermal fluids provide the means for chemical precipitation. Individual crystals are rare but do occur as slender to acicular prisms. Pseudomorphs after