A set of orange, octahedral 2.5mm Natanite crystals with very fine clear Fluorite and lustrous black Ilvaite. The flip side is loaded with excellent black shiny Ilvaite crystals to 4mm and tinly less than 1mm orange Natanite. Exceptional specimen.
Natanite is a rare oxide of tin and found in less than 15 places worldwide. There are no US localities.