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Meurigite-K: [K(H2O)2.5][Fe+++8(PO4)6(OH)7(H2O)4]
Comments: Yellow, radial acicular sprays of meurigite to about 0.75 mm. Location: Teskov quarry, near Prague, Bohemia, Czech Republic. Scale: Picture size 1.5 cm. © Tom Loomis / Dakota Matrix
Comments: Yellow-green spheroidal crystals of meurigite to 0.1mm, in a 5mm vug in black rockbridgeite(?) matrix. Location: Hagendorf Sud Pegmatite, Oberpfalz, Bavaria, Germany. Scale: Picture size 1.2 cm. © Tom Loomis / Dakota Matrix
Comments: Brown meuirite-K oolite showing the concentric-fibrous internal structure. Location: Rengersdorf, Görlitz, Oberlausitz, Saxony, Germany. Scale: Picture size 6 mm. © Thomas Witzke / Abraxas-Verlag