| Name: | PIEMONTITE | ||
| Specification: | [7], structure type - epidote, Mn | ||
| Formula: | (Mn,Ca)LaAlMn2[SiO4][Si2O7]O(OH) | ||
| Symmetry Class: | monoclinic-beta | ||
| Space Group: | P 2(1)/m | ||
| Unit Cell Parameters: | a = 8.8900 | b = 5.6900 | c = 10.1350 | beta = 114.4400 | ||
| Number of Formula Unit: | Z = 2 | Unit Cell Volume, Å3: | Vc = 466.73 |
| Number of Atomic Position per full Unit Cell: | P/U = 44 | Molar Volume, cm3/mol: | Vm = 140.57 |
| Number of Reflexes used in Structure Determination: | NR = 1219 | X-ray density, g/cm3: | p = 3.91 |
| R-factor: | R = 0.0240 | MU, 1/cm: | µ = 456.300 |
| Wave Length for Calculated Powder Diffraction Patterns: | Cu=1.54056 | Mass attenuation coefficient, cm2/g: | µ/p = 116.635 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||