A vein roughly 2-3 mm wide through matrix with exposed, obvious, needle-like
and grey and silvery crystals.
Long, slender platy and silvery crystals embedded in matrix to 4 mm.
Long, slender platy silvery crystals embedded in matrix to 3 mm.
Origin: Pirquitas Ag Sn deposit, Puna, Abra Pampa, , Jujuy prov., Argentina
(type locality)
Sample size: 5 x 5 x 3 cm (top), 2 x 1.5 x 1 cm (2nd row), 13 x 12 x 10 mm
(3rd row), 1.5 x 1.5 x 1 cm (bottom)
Grey-black bladed flat aggregates and veins in matrix
Black crystals to 1 mm on matrix
Origin: Mina Pirquitas, Jujuy Province, Argentina (type locality)
Sample size: 1 x 2.5 cm (top), micromount (bottom)