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Gainesite: Na2Zr2Be(PO4)4·1-2(H2O)
Comments: Fragment of intensely blue colored gainesite on paper. Location: Nevel Quarry (Twin Tunnels; United Feldspar Quarry), Newry, Oxford Co., Maine, USA. Scale: Fragment Size 0.2 mm. © Jeff Weissman / Photographic Guide to Mineral Species