Mineral Density (g/cm)
Magnetite
5.20
Rose Quartz 2.65
Calcite
2.71
Gypsum
2.31
Talc
2.75
Graphite
2.27
Flourite
3.13
Hematite
5.30
Pyrite
5.01
Sulfur
2.07
Note the density of the 6 minerals you identified in Part 1
Make a graph of the data collected. Be sure to title the graph and label each axis.
a Place density on the y-axis
b. Place Hardness on the x-axis. (You can look up the exact hardness of the minerals you identified in
c. Connect the points on the graph using a smooth line
d. Determine if the points lie in a "straight" line. Keep in mind that this is real scientific data. It is highly unlikely that any set of data will have all points lines on one straight line. However, this does not mean that there cannot be a close correlation. If most of the points live close to a central line, then there is probably a positive correlation. Use the following examples to help you determine what, if any, correlation exists.