This matrix specimen consists of several pale yellow, lustrous, sharp crystals
in radiating aggregates measuring up to 1.4 cm in diameter which are
associated with
stannite,
quartz
and pyrite.
The small white "balls" on the specimen are more than likely
planerite
, but they have yet to be analyzed.
Wavellite on
quartz
Origin: Siglo XX mine, Llallagua, Bustillo Province, Potosi Department,
Bolivia
Sample size: 4 x 3.5 x 2.2 cm (top/2nd row), 2.7 x 2.3 x 2.1 cm (3rd
row), 5.2 x 2.7 x 2.4 cm (4th/5th row), 10.2 x 8.5 x 3.0 cm (6th/7th/bottom
row)
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