Machacamarca District (Colavi District), Saavedra Province, Potosi Department, Boliviah
6.6x 4.0x 3.9 cm
$360
A nice example of bournonite crystals perched on the top of their matrix.
The last time this mine produced particularly good lustrous crystals was 2012-- there was another find of large blocky crystals around 2015, but they didn't have much going for them as far as luster was concerned, nor did I see any on matrix.
