Mass of Rhino horn (g) Density No. of filamentous unit per sq mm Inter filamentous unit distance (µ) Prevalent filamentous unit and their size (µ) (Min-Max) Range Min Max Avg Min Max Avg Min Max Avg Min Max Avg Oval Circular Triangle <200 8 190 102 0.55 1.09 0.79 4 18 9.11 40 200 97.25 150 × 350-300 X400 200×250-300×350 300×600 200-400 200 390 314 0.61 2.61 0.96 3 10 5.41 27 100 66.52 - 300×320-320X350 300×450-350 X480 400-600 400 590 492 0.53 1.16 0.76 3 10 5.48 20 133 65 300×400-700 X750 400×400-550X600 280×400-550 X800 600-800 600 780 683 0.465 6.04 0.90 3 9 5.1 30 133 66.84 120×140-400 X700 - 400×450-550X750 800-1000 800 990 906 0.51 0.92 0.69 2 7 4.16 20 110 57.77 380×430-550X700 - 350×350-420 X700 1000-1200 1000 1190 1096 0.52 1.46 0.75 3 9 4.40 26 156 74.35 450×550-650 X700 - 400×400-610 X790 1200-1700 1200 1690 1382 0.48 0.94 0.74 3 6 4.46 10 106 43.33 450 X550-500×600 - 300×400-600 X650

Table 1: Morphological and microscopic details of genuine horns.