This exceptional flat combines several specimens of Wickenburgite and Maricopaite from the well known Old Man Anchor Mine in Arizona. The pieces show typical massive to granular areas with light, partly whitish to yellowish coatings and contrasting zones within the host rock. Particularly noteworthy is the UV reactivity of Wickenburgite, which responds clearly under shortwave or longwave UV light and adds a special appeal for collectors. Crystalline areas are locally recognizable and give the specimens an interesting surface texture.
The flat represents a closed unit and documents the characteristic paragenesis of these rare lead and barium minerals from Arizona. It is especially attractive for collectors of UV minerals and for systematic USA collections.
Geology & Origin
The Old Man Anchor Mine is one of the classic mineral localities in the Wickenburg area of Arizona. The mineralization is related to hydrothermal solutions that formed complex lead and barium minerals within carbonate and silicate host rocks. Wickenburgite and Maricopaite occur there as secondary formations in fractures and ore zones. The UV reaction of Wickenburgite is caused by its specific chemical composition and trace elements, making this occurrence particularly interesting from a mineralogical point of view.
The product image shows an example of how the minerals can be presented.
The flat and the folding boxes are not included but can be purchased separately.