Information card for entry 9001226

Structure parameters

• Mineral name: Hornblende
• Formula: Al2.42 Ca1.806 Fe1.884 H1.78 Mg2.186 Na0.664 O24 Si6.44 Ti0.07
• Calculated formula: Al2.42 Ca1.806 Fe1.884 H1.78 Mg2.186 Na0.664 O24 Si6.44 Ti0.07
• Title of publication: Effects of oxidation-dehydrogenation in tschermakitic hornblende sample H-11, after annealing at 650 C, 1 kbar
• Authors of publication: Phillips, M. W.; Draheim, J. E.; Popp, R. K.; Clowe, C. A.; Pinkerton, A. A.
• Journal of publication: American Mineralogist
• Year of publication: 1989
• Journal volume: 74
• Pages of publication: 764 - 773
• a: 9.803 Å
• b: 18.046 Å
• c: 5.313 Å
• α: 90°
• β: 105.05°
• γ: 90°
• Cell volume: 907.657 ų
• Sample thermal history: after annealing at 650 C
• Sample pressure history: after annealing at 650 C, 1 kbar
• Number of distinct elements: 9
• Space group number: 12
• Hermann-Mauguin space group symbol: C 1 2/m 1
• Hall space group symbol: -C 2y
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No