The Collaborative International Dictionary of English v.0.48:

Sinople \Sin"o*ple\, n. (Min.)
   Ferruginous quartz, of a blood-red or brownish red color,
   sometimes with a tinge of yellow.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Sinople \Sin"o*ple\, n. [F., fr. LL. sinopis. See Sinople a
   mineral.] (Her.)
   The tincture vert; green.
   [1913 Webster]