Information card for entry 9017202

Structure parameters

• Mineral name: Hellandite-(Y)
• Formula: Al0.92 B4 Ca1.582 Fe0.08 H2 Mn0.88 O24 Si4 Y2.752 Yb0.386
• Calculated formula: Al1.84 B8 Ca3.164 Fe0.16 H4 Mn1.76 O48 Si8 Y5.504 Yb0.7728
• Title of publication: Mn-bearing hellandite-(Y) from the Heftetjern pegmatite, Tordal, Norway
• Authors of publication: Miyawaki, R.; Momma, K.; Yokoyama, K.; Shigeoka, M.; Matsubara, S.; Ito, M.; Nakai, I.; Kristiansen, R.
• Journal of publication: The Canadian Mineralogist
• Year of publication: 2015
• Journal volume: 53
• Pages of publication: 345 - 356
• a: 18.609 Å
• b: 4.6307 Å
• c: 10.143 Å
• α: 90°
• β: 111.475°
• γ: 90°
• Cell volume: 813.371 ų
• Number of distinct elements: 10
• Space group number: 13
• Hermann-Mauguin space group symbol: P 1 2/a 1
• Hall space group symbol: -P 2ya
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No