

3rd Place, 1983
Paul E. Danielson
Teledyne Wah Chang Albany
Albany, Oregon, USA
Hafnium, polished with alumina abrasives and HF/HNO3/H2O solution (150x)
Polarized light - Learn more


Paul E. Danielson
Teledyne Wah Chang Albany
Albany, Oregon, USA
Hafnium, polished with alumina abrasives and HF/HNO3/H2O solution (150x)
Polarized light - Learn more