Origin of lamprophyre
Related formslam·pro·phyr·ic [lam-pruh-fir-ik] /ˌlæm prəˈfɪr ɪk/, adjective
Examples from the Web for lamprophyre
It is supposed that they did not crystallize in the lamprophyre dike but in some way were caught up by it.
They are found mostly as loose crystals in gravel, but are known also in igenous rocks like andesite and lamprophyre.
Each variety of lamprophyre may and often does contain all four minerals but is named according to the two which preponderate.
In Fergus County, Montana, they are mined from decomposed dikes of lamprophyre (a basic igneous rock).The Economic Aspect of Geology|C. K. Leith