How to plot the relationship among 3 varibles by a given formula in r, 3D plot?

Question

I have a dataframe like below,

structure(c(15.59, 7.31, 7.31, 7.48, 7.83, 7.83, 7.83, 7.85, 
7.87, 7.93, 0.2397, 0.2408, 0.2408, 0.2705, 0.2408, 0.253, 0.2526