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Tritomite-(Y): (Y,Ca,La,Fe++)5(Si,B,Al)3(O,OH,F)13 (?)
Comments: Massive, resinous spencite (Tritomite-(Y)), with brown zircon crystals.. Location: BEMCO prospect (Charlotte Mine), Cranberry Lake, Byram Township, Sussex Co., New Jersey, USA. Scale: Sample Size 2.0 cm. © Jeff Weissman / Photographic Guide to Mineral Species