Изумруды в матрице, в родной породе, колумбийские

Petra is a real miracle because the use of explosives in the extraction of emeralds often breaks the matrix in many small pieces. Nevertheless, as unbelievable as it seems PETRA remained intact and broke a record in the emerald mining in the country since it converted in the largest emerald in matrix ever discovered in Colombia. Once the emeralds are out of the bearing vein they are extracted from the small matrixes and kept in safe bags that are later shown to the mine partners. This was not the case for P