Magnetite 2,500 foot Level of the Zinc Corporation of America Mine, Balmat, St. Lawrence, County, New York. Ex. Chuck Bowman, Z.C.A. miner and collector of specimen. Rare, well documented, and important material that is unique to the mineralogical world. It also ranks among the best known for the species. This example shows both of the important forms (cubes with tetrahexahedral modifications to faces) in beautifully formed, damage-free crystals. The first image is the front view of this 4.9 x 3.8 x 2.5 cm piece. The specimen shows mixed luster crystals of good size (to 1.3 cm on edge). Crystallized on all surfaces with back showing several healed contacts. Several crystals missing, as seen. $275