Green aventurine has a shimmering iridescence and a semitranslucent appearance. Aventurine is a metamorphic rock, meaning it is made up of more than one mineral. Green aventurine is mostly quartz with the glistening effect coming from tiny inclusions of shiny mica minerals. Colors may vary.
Cabochons>Grade B>AventurineCabochonsGrade BAventurineGreens14x10mmOval10mmhttp://www.firemountaingems.com/itemdetails/h201194cbH201194CBCabochon, green aventurine (natural), light to medium, 14x10mm calibrated oval, B grade, Mohs hardness 7. Sold per pkg of 6.//image1.fmgstatic.com/images/p1194cbb.jpg5.105.10As Low As $0.35 per cabochon