ATM Black Rouge

[Anthony Stillman <atmer@flash.net>]

A true non-sequitur.

OK, so the prevailing wisdom is that this stuff leaves a great finish.  By
that I assume this means a finish better than red rouge (true redundancy).
David Barrosso, this RTMC, gave me a bag of black rouge, with the provision
I give him feedback.

Before I make a new lap and expose precious glass to the unknown I would
like to know what to expect in terms of polishing rate.  Faster, slower,
about the same as red rouge?  Also, what's the stain situation, are my
fingers going to turn black?  Frank?

Incidently, I did the search thing and learned black rouge is also called
ferrosoferric oxide and triiron tetroxide.  That it is Fe3O4 (magnetite)
and that it forms when iron is heated in presents of steam.  For the sake
of post  completeness, red rouge is Fe2O3 (haematite).


Anthony



PS  I got a lot of the info at <http://www.xrefer.com>