Information card for entry 9000197

Structure parameters

• Mineral name: Howlite
• Formula: B5 Ca2 H5 O14 Si
• Calculated formula: B5 Ca2 H5 O14 Si
• Title of publication: Crystal structure of the calcium silicoborate, howlite
• Authors of publication: Finney, J. J.; Kumbasar, I.; Konnert, J. A.; Clark, J. R.
• Journal of publication: American Mineralogist
• Year of publication: 1970
• Journal volume: 55
• Pages of publication: 716 - 728
• a: 12.78 Å
• b: 9.33 Å
• c: 8.6 Å
• α: 90°
• β: 104.83°
• γ: 90°
• Cell volume: 991.284 ų
• Number of distinct elements: 5
• Space group number: 14
• Hermann-Mauguin space group symbol: P 1 21/c 1
• Hall space group symbol: -P 2ybc
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No