wurtzilite

wurtzilite

[′wərt·sə‚līt]
(geology)
A black, massive, sectile, infusible, asphaltic pyrobitumen derived from the metamorphosis of petroleum.
References in periodicals archive ?
Solid hydrocarbons, including gilsonite, wurtzilite, grahamite, ozokerite, and albertite, are found as veins or pods in some oil shales.