I am working on a Graphics3D
figure that I want to include the "earth ground symbol": 
It is a unicode symbol with the decimal code 9178. source: 1 2
I tried this command
Text[FromCharacterCode[{9178}]]
but the output is nothing other than a blank square, altough
`Text[FromCharacterCode[{97}]]`
returns a
.
Do I have to resort to a png image of the earth symbol to be transplanted or can Mathematica render it in my plot?
Thanks a lot!