adj.of metals e.g.; not made shiny and smooth by friction

In Memory of Garth Boomer: "May He Not 'Rust Unburnished' but 'Shine in Use'".
A study of marginal leakage of burnished and unburnished amalgam restorations in vitro subjected to thermal stress
Burnett Unburnished; Robin Williams Enlivens A Fitful Special on ABC
To Rust Unburnished
Thermomechanical fatigue behavior of burnished 7075–T6 aluminum alloy
The Improvement in Fatigue Life of Burnished Components
A Place of Burning: Hero or Ancestor Cult at Troy
Method for coating substrates with silicon based compounds
ANTISTATIC GARMENT
POROUS METAL STRUCTURE