A quick try with some pure Cobalt powder and acetum distillatum.
The tincture came easely, and is of a pinky color, slightly violet and maybe with a little of orange.
Do NOT ingest this tincture unless you are REALLY SURE about your capacities in metallic Spagery ! This can be very dangerous. Use only for magical or energetical purpose only, or your own curiosity in the metallic tinctures.
The powder is grey after the extraction.