Description | Cylindrite, FePb3Sn4Sb2S14 (iron lead tin antimony sulfide), is a most unusual sulfide mineral. It has an extremely unique crystal habit. One so unique that it pretty much corners the market on this crystal habit. Cylindrite as its name implies, forms cylindrical crystals. The crystals are actually coiled sheets that give the appearance of having been rolled into tubes or cylinders. With this unusual crystal habit, cylindrite is a must have for someone who likes one-of-a-kind forms. |