Mineral Specimen and Product Inventory Search
- Big Mike mine, Pershing Co., Nevada, United States
- 8 x 6 x 3 cm - Sm Cabinet
Alpersite was approved in 2003, but I haven't seen too many specimens of this mineral. It is a Mg-Cu sulfate and is post-mine. There are tiny crystals formless to tabular crystals less than 1mm and sugary aggregates. On this specimen there is also white, fibrous Pickeringite. This is the type and only locality. The lot that I have was verified by XRD.