Charoite : (K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4·~3H2O
66mm x 60mm x 5mm
Photo added to mindat.org
“This polished slab measures 66x60x5 mm.”
Charles Calkins - 5th September 2010
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