Orthorhombic 2/m2/m2/m or mmm (D2h)3D ModelNoAI
Crystal System: Orthorhombic
Crystal Class/Point Group (Hermann-Mauguin notation): 2/m2/m2/m or mmm
Crystal Class/Point Group (Schönflies notation): D2h
Symmetry: i, 3A2, 3m
Name of Class: Rhombic-dipyramidal
Notes: This class has 3 perpendicular 2-fold axes that are perpendicular to 3 mirror planes. The dipyramid faces consist of 4 identical faces on top and 4 identical faces on the bottom that are related to each other by reflection across the horizontal mirror plane or by rotation about the horizontal 2-fold axes.
The most common minerals in this class are andalusite, anthophyllite, aragonite, barite, cordierite, olivine, sillimanite, stibnite, sulfur, and topaz.
Website: http://geology.uaic.ro/muzee/mineralogie/
Concept & 3D-modelling by Andrei Ionut APOPEI
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