Information card for entry 9001934

Structure parameters

• Mineral name: Actinolite
• Formula: Al0.294 Ca1.772 F0.048 Fe2.757 H1.836 K0.022 Mg2.049 Mn0.316 Na0.192 O23.952 Si7.756 Ti0.004
• Calculated formula: Al0.294 Ca1.772 F0.048 Fe2.757 H1.836 K0.022 Mg2.049 Mn0.316 Na0.192 O23.952 Si7.756 Ti0.004
• Title of publication: Fe-Mg order-disorder in tremolite-actinolite-ferro-actinolite at ambient and high temperature Sample: AMNH 44973, from Cumberland, Rhode Island in a quartzite
• Authors of publication: Evans, B. W.; Yang, H.
• Journal of publication: American Mineralogist
• Year of publication: 1998
• Journal volume: 83
• Pages of publication: 458 - 475
• a: 9.884 Å
• b: 18.189 Å
• c: 5.302 Å
• α: 90°
• β: 104.6°
• γ: 90°
• Cell volume: 922.415 ų
• Number of distinct elements: 12
• 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