Locality type: Tunnel Classification Species: Xenotime-(Y) Formula: Y(PO4 ) Comments: In hydrotermally altered Rotondo granite, at ca. 2255 m from the portal, in association with aeschynite-(Y), anatase, brookite, gadolinite-(Y), magnetite, and synchysite-(Ce). Confirmation Validity: Believed Valid Data Mineral Data: Click here to view Xenotime-(Y) data Locality Data: Click here to view Ronco tunnel (Bedretto window; Ronco window) [south section], Ronco, Bedretto, Leventina, Ticino, Switzerland Data Identifiers Mindat Occurrence Record ID: 549333 Long-form Identifier: 1:3:549333:3 GUID (UUID V4 ): 0 References Search for references including Xenotime-(Y) Ronco tunnel (Bedretto window; Ronco window) [south section], Ronco, Bedretto, Leventina, Ticino, Switzerland