density of red selenium vs black selenium

red selenium black selenium | density

red selenium | 4.39 g/cm^3 (grams per cubic centimeter) black selenium | 4.28 g/cm^3 (grams per cubic centimeter)

| visual | ratios | | comparisons black selenium | | 0.9749 | 1 | 2.506% smaller red selenium | | 1 | 1.026 | 2.57% larger

4.39 | 4.28