Prairie Agate 49.01 ct
Trillion Cabochon 39.00 x 28.50 x 6.90 mm
Black Hill Area,
South Dakota,
USA
max3546
Prairie agate
this type of agate is a mixture of quartz and agate layers. Geologically is related to the Chadron
Formation (lower Oligocene and upper Eocene). It's color is generally brownish-red, brown and white. It
is found primarily in the Black Hills of northeastern Wyoming,South Dakota and Nebraska .
Hand polished on both sides.