Areas of yellow Phurcalite, a uranium phosphate mineral, on matrix. Uncommon specimen from the Chuck Trantham collection.

Crystals of deep blue Linarite and green Brochantite. The Linarite formed spherical masses of bladed crystals. Ex. Chuck Trantham collection.

Crystals of blue Caledonite in matrix. Some is more massive looking but there are plenty of lustrous crystal faces present. Ex. Chuck Trantham collection.

Crystals of blue Caledonite in matrix. Some is more massive looking but there are plenty of lustrous crystal faces present. Ex. Chuck Trantham collection.

Large Chalcopyrite crystals to 2.5cm on a matrix of soid Chalcopyrite. The El Teniente mine (meaning "The Lieutenant") is reportedly the world's biggest underground copper mine than began operations in 1819, located in the Andes mountains at an elevation of 7,500 above sea level. This mine is also known for its very large gypsum crystals, measuring up to l0 feet long. An interesting locality piece that comes with an old Lidstrom's label. Out of an old collection form the 1980s.

Mass of crystallized Copper with attached, distinct crystals of Cuprite. Comes with an old Roberts Minerals label.