A variety of chalcedony, spotted chalcedony, or brecciated agate, is found in South Africa. Opaque to semitranslucent, the stone has a range of color tones including brown, red and cream. Chalcedony is a relatively hard stone measuring 6-1/2 to 7 on Mohs hardness scale. Consistent calibrated size with a nice polish.
Cabochons>Grade B>ChalcedonyCabochonsGrade BChalcedonyMulti-colored25x18mmOval18mmhttp://www.firemountaingems.com/itemdetails/h203263cbH203263CBCabochon, spotted chalcedony (natural), 25x18mm calibrated oval, B grade, Mohs hardness 6-1/2 to 7. Sold individually.//image2.fmgstatic.com/images/p3263cbb.jpg8.478.47As Low As $3.86 per cabochon