Information card for entry 9001933

Structure parameters

• Mineral name: Actinolite
• Formula: Al0.072 Ca1.872 Cl0.02 F0.048 Fe2.673 H1.886 K0.004 Mg2.405 Mn0.042 Na0.096 O23.932 Si7.928
• Calculated formula: Al0.072 Ca1.872 Cl0.02 F0.048 Fe2.673 H1.886 K0.004 Mg2.405 Mn0.042 Na0.096 O23.932 Si7.928
• Title of publication: Fe-Mg order-disorder in tremolite-actinolite-ferro-actinolite at ambient and high temperature Sample: C60, 12BA, from Bloom Lake, Quebec, Canada in an iron formation 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: 9.9 Å
• b: 18.198 Å
• c: 5.299 Å
• α: 90°
• β: 104.63°
• γ: 90°
• Cell volume: 923.716 ų
• Sample thermal history: after heating at 700 C
• 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