Convert RhinoCommon Geometry to JSON

Hi,
I am not that experienced with Python scripting in Grasshopper and was wondering if someone can tell me if it is possible to save a dictionary containing Rhino.Geometry.Plane , Brep etc… to a JSON file.
The error I recieve is :
" Runtime error (TypeErrorException): <Rhino.Geometry.Plane object at 0x0000000000000086 [Origin=-31,9,0 XAxis=0,-1,0, YAxis=1,0,0, ZAxis=0,0,1]> is not JSON serializable

Traceback:
line 442, in _iterencode, “C:\Program Files\Rhino 6\Plug-ins\IronPython\Lib\json\encoder.py”
line 408, in _iterencode_dict, “C:\Program Files\Rhino 6\Plug-ins\IronPython\Lib\json\encoder.py”
line 434, in iterencode, “C:\Program Files\Rhino 6\Plug-ins\IronPython\Lib\json\encoder.py”
line 184, in default, “C:\Program Files\Rhino 6\Plug-ins\IronPython\Lib\json\encoder.py”
line 189, in dump, "C:\Program Files\Rhino 6\Plug-ins\IronPython\Lib\json_init
.py"
line 13, in script
"
If it is possible, how would I go about it ?

Bovas