Thorite, Zircon (Var: Cyrtolite)
Little Patsy pegmatite, South Platte Pegmatite Mining District, Jefferson County, Colorado, USA
Rich example of waxy brown Thorite-(Fe) with Cyrtolite (Zircon) from the Little Patsy Pegmatite, Foxton, South Platte Pegmatite district, Jefferson County, Colorado, USA. These occur interleaved with giant biotite books in the outer intermediate zone of this large, complex NYF-type pegmatite. Locality now closed.
Raúl J. Tauber Larry´s ...