Gideon Singer wrote in message . ..
I have a large quantity of grey Mexican river rocks that have aquired
rust spots of varying degree on their surfaces. Is there a way to
remove these spots without destroying the surface of the rocks?
To email replace orchids with shaw

If the rust is caused by iron-bearing minerals in the rocks, no.

If you use various products made for removing rust stains from sinks, etc, the
stains will reappear after the rock has been out in the weather for a while.

J. Del Col

No these were caused by an iron grid that was supporting the center
rock in my bubbler as well as preventing the river rock from falling
into the basin underneath.

On 27 Feb 2004 04:37:25 -0800, (J. Del Col)
wrote:

If the rust is caused by iron-bearing minerals in the rocks, no.

If you use various products made for removing rust stains from sinks, etc, the
stains will reappear after the rock has been out in the weather for a while.

J. Del Col

To email replace orchids with shaw

No these were caused by an iron grid that was supporting the center
rock in my bubbler as well as preventing the river rock from falling
into the basin underneath.

On 27 Feb 2004 04:37:25 -0800, (J. Del Col)
wrote:

If the rust is caused by iron-bearing minerals in the rocks, no.

If you use various products made for removing rust stains from sinks, etc, the
stains will reappear after the rock has been out in the weather for a while.

J. Del Col

To email replace orchids with shaw

On Fri, 27 Feb 2004 00:12:22 GMT, Gideon Singer
wrote:

I have a large quantity of grey Mexican river rocks that have aquired
rust spots of varying degree on their surfaces. Is there a way to
remove these spots without destroying the surface of the rocks?
To email replace orchids with shaw


Purchase a product that removes rust. Naval Jelly, CLR, Zud, The
Works, all remove rust. Most of these contain oxalic acid. But, I
would not uses any of these if you intend to use the rocks in a fish
pond.

On Fri, 27 Feb 2004 00:12:22 GMT, Gideon Singer
wrote:

I have a large quantity of grey Mexican river rocks that have aquired
rust spots of varying degree on their surfaces. Is there a way to
remove these spots without destroying the surface of the rocks?
To email replace orchids with shaw


Purchase a product that removes rust. Naval Jelly, CLR, Zud, The
Works, all remove rust. Most of these contain oxalic acid. But, I
would not uses any of these if you intend to use the rocks in a fish
pond.

Oxalic acid (available from a good hardware store, if you still have them
where you live) is a nice safe acid that should work. It comes in crystal
form. Add about 1/4 cup to a gallon of warm water, stir to dissolve. Soak
the pebbles in a bucket if you have a few, or spray it on with a tank
sprayer if you have a lot. If spraying, spray repeatedly over the coarse of
a few hours. Then rinse with fresh water. This should clean them up pretty
well.
David

"Gideon Singer" wrote in message
...
No these were caused by an iron grid that was supporting the center
rock in my bubbler as well as preventing the river rock from falling
into the basin underneath.

On 27 Feb 2004 04:37:25 -0800, (J. Del Col)
wrote:

If the rust is caused by iron-bearing minerals in the rocks, no.

If you use various products made for removing rust stains from sinks,
etc, the
stains will reappear after the rock has been out in the weather for a
while.

J. Del Col

To email replace orchids with shaw