Bournonite With Fluorite and Galena
Naica, Chihuahua, Mexico
Small Cabinet, 8.8 x 7.1 x 5.4 cm
Ex. Richard Heck
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RARE for the locale, this vuggy matrix of lustrous, battleship gray galena hosts striated, darker gray crystals of bournonite, to 8 mm across. I cannot recall seeing but 2 or 3 Naica bournonites before. The matrix is also filled with glassy and gemmy, colorless fluorite cubes to 3.2 cm across - thus proving the piece is from Naica by its style or I would have thought the bournonite was from elsewhere. The fluorite exhibits a faint green fluorescence. Aesthetic, and displaying the rare association, this is a combo piece that is worth more than the sum of its parts!