Columbite-(Fe)-Columbite-(Mn) Series, Samarskite-(Y)
Queen deposit, La Jarita-Apache area, Petaca Mining District, Rio Arriba County, New Mexico, USA
Queen is know for its samarskite, columbite, and monazite. This is the first specimen of columbite that I have found that has intergrown fingers of samarskite. Most of the specimen is columbite but the shiny part is samarskite.
The Si-PIN XRF shows both minerals, with the samarskite adding Y and U to the Nb, Ta, Fe, and Mn of columbite.