There really is a "pink quartz" that is not the same as rose quartz.
It is uncommon, and seems to occur in small crystals in association
with larger smokey quartz crystals in granite pegmatites. Coromoto
Minerals has been mining in the Mount Mica pegmatite in Maine for
several years, and recently has published several photographs of
pink quartz crystals on their web site.
They do market their finds, so it is possible that the material you
saw came from Coromoto.