| Name: | PROTOANTHOPHYLLITE | ||
| Specification: | [1], DN | ||
| Formula: | (Mg,Fe,Na)7[Si4O11]2(OH)2 | ||
| Symmetry Class: | orthorhombic | ||
| Space Group: | P nmn | ||
| Unit Cell Parameters: | a = 9.3553 | b = 17.9308 | c = 5.3117 | ||
| Number of Formula Unit: | Z = 12 | Unit Cell Volume, Å3: | Vc = 891.03 |
| Number of Atomic Position per full Unit Cell: | P/U = 84 | Molar Volume, cm3/mol: | Vm = 44.72 |
| Number of Reflexes used in Structure Determination: | NR = 961 | X-ray density, g/cm3: | p = 2.99 |
| R-factor: | R = 0.0471 | MU, 1/cm: | µ = 129.530 |
| Wave Length for Calculated Powder Diffraction Patterns: | Cu=1.54056 | Mass attenuation coefficient, cm2/g: | µ/p = 43.359 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||