Two Views of Zircons from Brazil
Zircons from river gravel from central Brazil, associated with kimberlite indicator minerals. TrL and CL photos of each. Defocused beam - 3 cm x 2 cm. Samples mounted in 2.5 cm diameter resin mount. Long dimension of sample about 1.5 cm.
Furnished by Professor Ian McReath, U. Sao Paulo
