Information card for entry 9001939

Structure parameters

• Mineral name: Ferro-actinolite
• Formula: Al0.02 Ca1.952 Cl0.006 F0.01 Fe4.104 H1.868 K0.048 Mg0.742 Mn0.18 Na0.024 O24 Si7.98 Ti0.004
• Calculated formula: Al0.02 Ca1.952 Cl0.006 F0.01 Fe4.104 H1.868 K0.048 Mg0.742 Mn0.18 Na0.024 O23.984 Si7.98 Ti0.004
• Title of publication: Fe-Mg order-disorder in tremolite-actinolite-ferro-actinolite at ambient and high temperature Sample: C80, NMNH 168215, from Goose Creek Quarry, Leesburg, Virginia, in an alteration of hornblende, after heating at 700 C
• 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: 9.986 Å
• b: 18.296 Å
• c: 5.306 Å
• α: 90°
• β: 104.79°
• γ: 90°
• Cell volume: 937.308 ų
• Sample thermal history: after heating at 700 C
• Number of distinct elements: 13
• 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