A
heavy, metallic, mineral compound, riftgold is found on several worlds in
subsectors A-D of Reavers’ Deep.
This substance resembles gold ore when first mined, but turns a dull
brown after several months' exposure to oxygen (such as in a standard
atmosphere).
Riftgold has limited commercial value and is used primarily for
novelties.
One simple test to distinguish it from real gold (without a spectrograph)
is to place a small sample into a high-pressure oxygen chamber for several days
and look for signs of "browning" caused by oxidation.