Apatite Small 183×320 Medium 366×640 Large 586×1024 Download Tiff Original 1374×2400 | (356.3 KB) Description "Hexagonal; tri-pyramidal. Crystals usually long prismatic in habit; sometimes short prismatic or tabular. Usually terminated by prominent pyramid of first order and frequently a basal plane." — Ford, 1912 Keywords apatite, crystal, geology, geometry, mineral, prism Galleries Crystals Source: William E. Ford Dana's Manual of Mineralogy (New York: John Wiley and Sons, Inc, 1912) 288
