Possible to have two different blockquote definitions within the same post?

For my blockquotes, I use a little red quotation mark, shown here, defined like this in my stylesheet:

blockquote { }

For one particular post, however, I use a different blockquote image, shown here. This is how I change my blockquote image for specific posts/pages in my stylesheet:

.post-10732 blockquote { }

This, of course, applies to ALL blockquotes within a given post.

QUESTION:

In my upcoming post, I’d like to use two different blockquote images (depending on the quote – if I’m quoting a tweet I’d like to use a little blue Twitter bird, and for all other quotes I’d like to use my default red quotation mark). Is it possible to use two different blockquote style definitions within the SAME post? If yes, how to do it?