|Half of the >13,000 carats of facetable|
olivine (peridot) recovered from two ant
hills by the author. Too small to cut?
Look at some of the faceted gems produced
from these stones.
|Group of faceted peridot from Black Rock anthills. Note the |
color variations and clarity. Although small, much larger
material should be found in the soil as well as outcrop in this
area. The presence of olivine in these lamproites and
recovery of diamond-stability chromite suggests the liklihood
of hidden diamondiferous lamproites in this region.