Mineral Specimen #5122 Mixite with Likely Altestite
Schmiedestollen dump, Wittichen, Schenkenzell, Black Forest, Baden-Wurttemberg, Germany
Cu2+6Bi(AsO4)3(OH)6·3H2O and likely Bi2O(AsO4)(OH)
Mixite is present across of the surface of this specimen as a crust of micro crystals. There are also micro, spherical aggreagates of a yellow mineral which is likely Altestite. The matrix is composed primarily of reddish colored Barite.
Flaws: Nothing Appreciable