An odd looking euxenite. Looks much more like molybdenite with associated yellow ferrimolybdite... a very distinctive combination.
If it is moly with ferrimoly, then we either have a locality problem, or two new species for the rose quartz pit.
I've never seen moly from the rose quartz pit, and have only seen a tiny, tiny bit from the beryl pit, a very similar peg nearby. Needs confirmation from the owners or similar experts.
A quick poke with a pin or examination with low magnification would confirm ID, leaving the locality problem.