Locality: Potosí Mine, Francisco Portillo, West Camp, Santa Eulalia Mining District, Aquiles Serdán Municipality, Chihuahua, Mexico
Size: 87 mm x 66 x 37 mm (3.4 in. x 2.6 in. x 1.4 in.)
Weight: 189 g (6.7 oz.)
Cabinet specimen of chocolate brown dogtooth calcite to 25 mm. No matrix.