Hydrothermal breccia filled with massive black arsenic, in which crystals of dark-red proustite grow in cavities. The largest crystal (on the cover photograph) is 5 mm in size.
Localities, Czech Republic, Mineral Classification, Elements, Sulfides, Size, Medium, Type Localities
Proustite, arsenic
$209
In stock
Location: Jáchymov, důl Svornost, ČR [en]
Dimension: 65 × 90 × 110 mm
