As oarhy as you can, weigh (grams) and determine the volume (by water displacement, figure 1.9) of a sample of basalt add your data to the basalt density chart below. calculate the density of your sample of basalt to tenths of a g/cm. then determine the average density of basalt using all ten lines of sample data in the basalt density chart . as eactly as you can, weigh (grams) and determine the volume (by water displacement, figure 1.9) of a sample of granite. add your data to the granite density chart below. calculate the density of your sample of granite to tenths of a g/cm. then determine the average density of granite using all ten lines of sample data in the granite density chart. basalt density chart sample weight (g) sample volurne (cm sample density lg/cm) 40.5 29.5 46.6 31.5 37.6 34.3 78.3 28.2 55.6 3.1 13 10 15 10 12 3.0 3.2 3.1 3.1 3.1 3.1 3.1 18 10 2.8 30 3.1 average density of basalt - b. granite density chart granite sample volume (cm) sample density (g/cm) sample weight (g) 2.7 2.8 2.8 2.8 2.9 2.8 2.9 2.8 2.6 12 10 10 32.1 27.8 27.6 31.1 58.6 62.1 28.8 82.8 52.2 20 10 30 20 10 2..7 average density of granite-