Machonite

Machonite was a valuable substance used by the Time Lords in decoration.

Some of the furniture in the courtroom on board Space Station Zenobia was made of machonite. Sabalom Glitz noted that it was worth "a few grotzits" and offered to make a fair offer on it. (TV: The Ultimate Foe)

The table in the room in which the presidential inquiry arranged by the Sixth and Eighth Doctors was held had a polished machonite surface. (PROSE: The Eight Doctors)

Duronite was an alloy of machonite and duralinium. (PROSE: Birthright)