Fig. 258 - Dana sets of wooden crystal models3D ModelNoAI
Fig. 258 - Dana sets of wooden crystal models
28
28 Views
0Like
Triangles: 24
Vertices: 14
More model informationIII. Hexagonal system
A. Hexagonal division
3. Hexagonal-Trapezohedral class - 622
Figure 258. Hexagonal trapezohedron {21-31}
Dana sets of wooden crystal models, arranged by the late Professor William E. Ford to illustrate Dana’s Textbook of Mineralogy 4th edition (1932), originally produced by Dr. Krantz Rheinisches Mineralien-Kontor (Bonn).
Website: http://geology.uaic.ro/muzee/mineralogie/
Concept & 3D-modelling by Andrei Ionut APOPEI
Comments