Information card for entry 9003091

Structure parameters

• Mineral name: Feldspar
• Formula: Al2 Ca0.2 O8 Si2 Sr0.8
• Calculated formula: Al2 Ca0.2 O8 Si2 Sr0.8
• Title of publication: Single-crystal in situ high-temperature structural investigation of the I-1 - I2/c phase transition in Ca0.2Sr0.8Al2Si2O8 feldspar T = 500 C
• Authors of publication: Benna, P.; Bruno, E.
• Journal of publication: American Mineralogist
• Year of publication: 2003
• Journal volume: 88
• Pages of publication: 1532 - 1541
• a: 8.379 Å
• b: 12.971 Å
• c: 14.278 Å
• α: 90.11°
• β: 115.48°
• γ: 90.06°
• Cell volume: 1400.85 ų
• Ambient diffraction temperature: 773.15 K
• Number of distinct elements: 5
• Space group number: 2
• Hermann-Mauguin space group symbol: I -1
• Hall space group symbol: -P 1 (-1/2*x+1/2*y+1/2*z,1/2*x-1/2*y+1/2*z,1/2*x+1/2*y-1/2*z)
• Has coordinates: Yes
• Has disorder: No
• Has Fobs: No