[Rockhounds] Color of Minerals

[Kris Rowe]

Echoing Kriegh's comments, oil is a far better lubricant than water in most
workshop applications. However, some materials such as howlite, wonderstone,
and other porous materials that can be affected by oils necessitate the use
of water or other water soluble lubes. So, for those on a limited budget, or
with limited space or cutting sensitive materials, the water solution may be
best.
As Kriegh outlined, detailed cleaning and drying will be needed to preserve
your equipment and extend its life. As many do, I learned the hard way to
drain and clean my trimsaw, after forgetting to do so. If you do the same,
you'll find out just how quickly a saw blade will rust! Sloppiness gets
expensive very quickly.

I'm currently converting an 18" saw from oil lube to water. Thankfully, the
saw is equipped with greasable bearings, rather than sealed, and can be used
with water. A full circulation and filtering system is being installed and
will hopefuly work! (Mumbling my prayers ...)
I'd love to get some opinions and recommendations on blades for this saw
before spending the precious dollars. What say you, dear list members? Buy 1
top quality (expensive) blade, or start with cheap import blades and simply
replace more often?

Thanks!

Kris

On Mon, Mar 16, 2009 at 6:49 PM, Kreigh Tomaszewski
<Kreigh at tomaszewski.net>wrote:

> Most lapidary diamond blades are designed to work with oil. The bearings on
> most saws are designed to work with oil.  Unless you have a saw designed to
> work with water, you will have to clean up the saw after every time you cut
> to minimize rust damage from the water. I personally think oil gives better
> cooling (and helps lubrication while preventing rust); YMMV.
>
>
>
> On Monday, Mar 16, 2009, at 19:37 America/Detroit, paintricks at aol.comwrote:
>
>  Speaking of oil.? Is it better to cut with oil or water.? Seems the mist
>> given off by the blade may make it a little more messy.?I have an old saw so
>> it's a pain to take apart to clean it.
>> ? Thanks Kreigh,..:)
>>
>>
>> -----Original Message-----
>> From: Kreigh Tomaszewski <Kreigh at tomaszewski.net>
>> To: Rockhounds at drizzle.com: A mailing list for rock and gem collectors <
>> rockhounds at lists.drizzle.com>
>> Sent: Mon, 16 Mar 2009 5:54 pm
>> Subject: Re: [Rockhounds] Color of Minerals
>>
>>
>> Look at what you have cut recently and see if any of it has a green
>> streak. Some substances, like psilomelane, seem to make much finer particles
>> when cut and stay suspended in the oil, coloring it. Psilomelane will turn
>> your oil black within seconds.?
>> ?
>> Kreigh?
>> ?
>> On Monday, Mar 16, 2009, at 13:02 America/Detroit, Robert Betty Thomson
>> wrote:?
>> ?
>>
>>> ?
>>> Hello?
>>> ?
>>> I was wondering if someone could help me with question. It might sound >
>>> weird, but here it goes. Is there any rock, gem or mineral that you > would
>>> cut in a rock saw that would make the oil go and green sage > color. I have
>>> never come across this in all the years I have been > cutting. This one is
>>> stumping me. Any way that the oil would oxide > itself????????? Hope someone
>>> can help. The only thing I can think of > is someone was careless and added
>>> something to the oil, trying to > casue damage Thanks for your help?
>>> ?
>>> Robert & Betty?
>>> ?
>>> ?
>>> ?
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