Tourmaline
| View Cart ⇗ | Info
“Tourmaline crystals show the forms of the Rhombohedral Class but with hemispherical development. They are also commonly characterized by the presence of three faces of a triangular prism.” — Ford, 1912
Galleries
CrystalsSource
William E. Ford Dana's Manual of Mineralogy (New York: John Wiley and Sons, Inc, 1912) 44
Downloads
1230×2400, 352.5 KiB
524×1024, 47.4 KiB
328×640, 25.3 KiB
164×320, 10.7 KiB