Lage cut slab with embedded spots and vein of silver, a fascinating and rare ore rock. This specimen has a lot going on. Scattered although metal can be seen. Beautiful stone that has been polished by hand. Random filings are shown in acid test muriatic and nitric combined in silver 14k gold testing acid after 15 minutes with a silver going through which may contain platinum as well, according to the acid test. Has you can see in the acid the test remains with yellow and silver color through high grade gold acids, nitric and muriatic combined. The slab shows silver all over, but the acid test show that there is gold present in the small fine filings taken from the ore side edge. Measurements are 6-1/2 inches x 2-7/8 inches x 5/8 inch. Measurements from the longest points with an even thickness. The metal in although this specimen. One+ pounds approximate weight. Display or jewelry cabbing, low price rare specimen.