Information card for entry 9001108

Structure parameters

• Mineral name: Ashcroftine-(Y)
• Formula: C8 H9.1 B2.08 Ca1.72 K5 Na5.4 O103.36 Si25.92 Y10.28
• Calculated formula: C8 H9.1 B2.08 Ca1.72 K5 Na5.4 O103.36 Si25.92 Y10.28
• Title of publication: Ashcroftine, ca. K10Na10(Y,Ca)24(OH)4(CO3)16(Si56O140).16H2O, a structure with enormous polyanions Sample: investigated by Merlino
• Authors of publication: Moore, P. B.; Sen Gupta, P. K.; Schlemper, E. O.; Merlino, S.
• Journal of publication: American Mineralogist
• Year of publication: 1987
• Journal volume: 72
• Pages of publication: 1176 - 1189
• a: 24.039 Å
• b: 24.039 Å
• c: 17.538 Å
• α: 90°
• β: 90°
• γ: 90°
• Cell volume: 10134.7 ų
• Number of distinct elements: 9
• Space group number: 139
• Hermann-Mauguin space group symbol: I 4/m m m
• Hall space group symbol: -I 4 2
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No