Datolite Small 320×307 Medium 640×615 Large 1024×984 Download TIFF Original 2400×2306 | (375.4 KB) Description "Monoclinic. Habit varied. Crystals usually nearly equidimensional in the three axial directions and often complex in development." — Ford, 1912 Keywords crystal, datolite, geology, geometry, mineral Galleries Crystals Source: William E. Ford Dana's Manual of Mineralogy (New York: John Wiley and Sons, Inc, 1912) 257