Description: Mineral: Quartz Description: {100}, {210}, {101}, modified Location: Author: Presl, 1837. In: V.M. Goldschmidt, Atlas der Krystallformen, 1913-1923. System: Trigonal, point group: 32 Cell: a: 1, b: 1, c: 1.1, alpha: 90, beta: 90, gamma: 120 Link: http://www.smorf.nl/crystals_az_naam.php?crystal=Quartz_096 image@smorf Note that Miller indices here omit the value of third trigonal axe

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