Mineral Specimen and Product Inventory Search
- Featured in Special Editions
- Llallagua, Bolivia
- 8 x 6.5 x 4 cm - Sm Cabinet
- ore specimen, tin
The specimen is solid Cassiterite with several pseudo-octahedral dark brown crystals to 8mm. Cassiterite is the main ore of tin and contains up to 79% tin. Historically tin was used in tinplates for tin cans and in bronze, which contained about 9% tin. Modern uses of tin include electroplating steel, bronze wire and cable, bearings and bushings, gears, and screws since it is resistant to corrosion. It is non-toxic and thus used in food-processing equipment.
Llallagua is an important producer of tin ore, with moderate temperature sulfide veins containing Bi-Pb-Ag sulfide.
A large specimen of Pyrrhotite crystals to a whopping 3 to 6.5cm across!! These have been replaced by Siderite (unfortunately). It's still a magnificent specimen from the Barbara Cureton collection. Extra shipping will apply.