The Collaborative International Dictionary
Sagenite
Sagenite \Sag"e*nite\, n. [F. sag['e]nite, fr. L. sagena a large net. See Seine.] (Min.) Acicular rutile occurring in reticulated forms imbedded in quartz.
Wiktionary
sagenite
n. (context mineralogy English) acicular rutile occurring in reticulated forms embedded in quartz