-x·ene
\kˌsēn\  noun combining form 
(-s) 
Etymology: French -xène, from Greek -xenos stranger, from xenos 
1. : substance rarely associated with (such) a mineral 
< anthracoxene >
2. : intrusive mineral of (such) a character 
< leucoxene >
< cacoxene >
1.
< anthracoxene >
2.
< leucoxene >
< cacoxene >