Is this mother of vinegar. Can I use it?

[patrice]

Hello.

I have this interesting formation at the bottom of a rice vinegar bottle.
Is this mother of vinegar?
If so, could I extract it some how and use it to make wine vinegar?

01c95eefe87810ac426236fbdf5bc431d3faa097e6 by Patrice Lapointe, on Flickr

Thank you

[patrice]

Update 8 months later: it was mother vinegar.

I took it out of that bottle and used it to make red wine vinegar. It worked quite well.

[Christopher Weeks]

Nice! And thanks for reporting back -- we need more of that!