Name: | CUMMINGTONITE | ||
Specification: | [2] | ||
Formula: | Ca0.24Mn2.41Mg4.2Fe0.15Si8O22(OH)2 | ||
Symmetry Class: | monoclinic-beta | ||
Space Group: | C 2/m | ||
Unit Cell Parameters: | a = 9.6050 | b = 18.1240 | c = 5.3250 | beta = 102.6400 | ||
Number of Formula Unit: | Z = 2 | Unit Cell Volume, Å3: | Vc = 904.52 |
Number of Atomic Position per full Unit Cell: | P/U = 82 | Molar Volume, cm3/mol: | Vm = 272.41 |
Number of Reflexes used in Structure Determination: | NR = 1212 | X-ray density, g/cm3: | p = 3.13 |
R-factor: | R = 0.0470 | MU, 1/cm: | µ = 134.576 |
Wave Length for Calculated Powder Diffraction Patterns: | Co=1.78892 | Mass attenuation coefficient, cm2/g: | µ/p = 42.963 |
Theta-Interval for CPDP: | T/I = 1-45 |