Brochantite from Milpillas Mine, Cuitaca, Sonora, Mexico purple 5 inch triple penetrating crystal

5 inch triple penetrating crystal cluster of optical Calcite perched atop a drusy quartz matrix with stilbite

Superb specimen of translucent red-brown Chocolate heulandite in a doube terminated wheat sheave aggregates with lustrous crystal faces on chalcedony in small stalactitic formation matrix

Aesthetic formation of lustrous transparent emerald green apophyllite crystals in an intersecting formation inter grown with  pink stilbite crystals in aggregates

Otodus obliquus lived from the Paleocene to the Eocene time period

only Quartz

Brochantite from Milpillas Mine, Cuitaca, Sonora, Mexico purple 5 inch triple penetrating crystalMilpillas Mine, Cuitaca, Sonora, Mexico Large cabinet specimen of acicular vivid green crystals of brochantite lining one side of gray matrix. The brochantite crystals are emerald green colored with hair thin needle crystals in intersecting formation. 13. 2 lbs, 11 x 10 x 3. 5 inches