the standard Tripoint grounding cables that came with the Tripoint Troy Signature, and the Tripoint Elite have silver spades, but the cables are jacketed. as i recall i was told they are silver. never seen them without a jacket but no reason to doubt what
@Iamrael says.
all my Entreq grounding cables seem to be silver.
so you prefer the Troy grounding cables to the Eartha Appollo on your Airblades?
i have three of the Olympus Mini Boxes on top of my Poseidon, all using the Eartha Appollo cables. but have not messed with it forever. the Entreq is only chassis ground on my EA Bass Tower amps. subtle but valuable effect there. when i first got that i used it on grounding the speaker terminals, but quickly went away from that.