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 BAventurineGreens16x12mmOval12mmhttp://www.firemountaingems.com/itemdetails/h201195cbH201195CBCabochon, green aventurine (natural), light to medium, 16x12mm calibrated oval, B grade, Mohs hardness 7. Sold per pkg of 6.//image1.fmgstatic.com/images/p1195cbb.jpg6.596.59As Low As $0.46 per cabochon