text: Non-systematic, less-recognized and often unverified syntheses of silicon carbide include:
  * César-Mansuète Despretz's passing an electric current through a carbon rod embedded in sand (1849)
  * Robert Sydney Marsden's dissolution of silica in molten silver in a graphite crucible (1881)
  * Paul Schuetzenberger's heating of a mixture of silicon and silica in a graphite crucible (1881)
  * Albert Colson's heating of silicon under a stream of ethylene (1882).