| Name: | QUARTZ | ||
| Specification: | [23], alpha, structure type - alpha-quartz | ||
| Formula: | SiO2 | ||
| Symmetry Class: | trigonal | ||
| Space Group: | *P 3(1)21 | ||
| Unit Cell Parameters: | a = 4.9170 | c = 5.4100 | ||
| Number of Formula Unit: | Z = 3 | Unit Cell Volume, Å3: | Vc = 113.27 |
| Number of Atomic Position per full Unit Cell: | P/U = 9 | Molar Volume, cm3/mol: | Vm = 22.74 |
| Number of Reflexes used in Structure Determination: | NR = 171 | X-ray density, g/cm3: | p = 2.64 |
| R-factor: | R = 0.0288 | MU, 1/cm: | µ = 91.006 |
| Wave Length for Calculated Powder Diffraction Patterns: | Cu=1.54056 | Mass attenuation coefficient, cm2/g: | µ/p = 34.452 |
| Theta-Interval for CPDP: | T/I = 1-45 | ||