Rutile in Precambrian sillimanite-quartz gneiss and related rocks, east-central Front Range, Colorado geologic and geochemical study of rutile-bearing rocks in Colorado and a descr... von Marsh, Sherman P., Sheridan, Douglas M.

“… Geology and resources of titanium in the United States …”

Alluvial ilmenite placer deposits, Central Virginia a discussion of ilmenite placers in alluvial deposits along streams draining the Roseland Anorthosite and nearby areas, and thei... von Minard, James P., Force, Eric R., Hayes, G. W.

“… Geology and resources of titanium in the United States …”