8fbjter ((BOURNONITE)), $45 MINIMUM BID, Machacamarca Mine, near Colavi, Potosi, Bolivia, 3.5 x 3 x 3 cm, Miniature, | |
Three untwinned undamaged Bournonite crystals to to 2.7 cm on matrix of micro Pyrite. Crystals are lustrous gun metal grey in color. |