Aggregate aesthetics of absolute quality.
It is composed of large and small dark gray bournonite crystals, placed side by side on a pinch of matrix ... Specimen weight:135 gr. Crystal size:mm. 29 Overall size:54mm x 43 mm x 30 mm
Bournonite and Stephanite, Argyrodite ? - Colquechaca, Chayanta, Potosí, Bolivia(#12282_BOUR_DANI)
Another killer duo or trio. Bournonite xx with Stephanite xx and possibly also Argyriodite xx on matrix. Specimen weight:390 gr. Crystal size:2 mm (b), 2 mm(s), 1 mm Overall size:80mm x 40 mm x 70 mm
A big 'cogwheel' shaped, dark grey colored crystal of bournonite is in good evidence over the surface of this specimen.
Some other minors are visible all around. Specimen weight:155 gr. Crystal size:mm. 26 Overall size:61mm x 42 mm x 26 mm