unctuous |ˈə ng (k) ch oōəs|

adjective

1 (of a person) excessively or ingratiatingly flattering; oily : he seemed anxious to please but not in an unctuous way.

2 (chiefly of minerals) having a greasy or soapy feel.

Pretty much sums things up, I’d say.

--Geo. Willeman

PS: Thanks for stopping by; many pictures to check out, plus this thing to the left here.