This mine was a high grade zinc mine with very little  contaminants in the ore which made it easier to mill and produced good concentrate

forming hollow branching structures that solidify as they cool

8 gr / 24x15x4 mm

Treatment: None (unheated

Mineral World Series Crystal Collection | Lot of 4 | Protective Display Box | Rare Premium Specimens Breccia This mine was a highThis is a collect of beautiful, thumbnail sized mineral specimens. These rare, premium specimens will be protected in individual display boxes that measure 28x28x21 mm (1x1x7 8 inches). Mined in various locations as follows: (thumbnail size) Sampleite North Parkes Mi, Parkes NSW, Australia Vanadinite Mibladen, Morocco Ferrierite Kamloops Lake, B. C. Canada Chalcotrichite Copper Queen Mine, Bisbee, Arizona