Question: POINTS in plot3d

Is there a way to plot POINTS in plot3d?  POINTS is described in the PLOT and PLOT3D Data Structures help section.

I have made it work in a 2d plots, but I want to plot points in 3d (a sort of 3d scatter plot).   In the Structures help section it says that the POINT structure is used to define a set of points in 2 or 3 space (if a z value is also supplied).

In the plot3d/options help it makes reference to defining symbols for ploting points.  But I can't figure out or find any examples of how it is done. 

Any help would be appreciated.

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