| Name: | PIEMONTITE | ||
| Specification: | [6], structure type - epidote, Sr | ||
| Formula: | Ca1.8Sr0.2Al1.91Fe0.33Mn0.82Si3O12OH | ||
| Symmetry Class: | monoclinic-beta | ||
| Space Group: | P 2(1)/m | ||
| Unit Cell Parameters: | a = 8.8970 | b = 5.7020 | c = 10.2320 | beta = 115.0700 | ||
| Number of Formula Unit: | Z = 2 | Unit Cell Volume, Å3: | Vc = 470.17 |
| Number of Atomic Position per full Unit Cell: | P/U = 44 | Molar Volume, cm3/mol: | Vm = 141.60 |
| Number of Reflexes used in Structure Determination: | NR = 3313 | X-ray density, g/cm3: | p = 3.58 |
| R-factor: | R = 0.0460 | MU, 1/cm: | µ = 321.847 |
| Wave Length for Calculated Powder Diffraction Patterns: | Cu=1.54056 | Mass attenuation coefficient, cm2/g: | µ/p = 89.972 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||