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LAPIDARY ARTS and FACETERS DIGEST
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Issue No. 295 - Friday, July 30, 2004
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Moderated by: Thurmond Moore III
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Committed to carrying on the fine works of
Hale Sweeny and Jerry Dewbre
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POST TO EITHER LINK BELOW:
lapidary@caprock-spur.com
faceters@caprock-spur.com
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VISIT OUR WEBSITE TODAY
http://www.gemcutters.org or
http://www.facetersdigest.org
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Hi all,

Here it is. More post this time.
Have a great weekend.

Thurmond

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Index to Today's Digest

01  FS:  10 inch vibratory flat lap
02  RE: spectrascope
03  RE: pyrite, to cab or not to cab? that's the question!
04  RE: pyrite, to cab or not to cab? that's the question!
05  NEW: DataVue
06  NEW: saw instructions wanted
07  NEW: Briolette designs wanted
08  NEW: turquoise - chemical makeup questions
09  NEW: Last week's funny

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Message:01

Subject: 10 inch vibratory flat lap for sale
Date: Fri, 23 Jul 2004 17:15:53 -0700 (PDT)
To: lapidary@caprock-spur.com
From: "Phil\(NM\)" <goldpnr@yahoo.com>

Just finished refurbing it with new pads, etc. Will
consider any fair offer.
Located in Albuquerque, NM

Phil

__________________________________________________________
Message:02

Subject: Spectroscope Issues
Date: Sat, 24 Jul 2004 00:17:39 -0400
To: LapidaryArtsDigest <lapidary@caprock-spur.com>
From: Kreigh Tomaszewski <Kreigh@Tomaszewski.net>

LapidaryArtsDigest wrote:
> Message:03
>
> Subject: Spectroscope light and focus
> Date: Sat, 17 Jul 2004 15:06:31 -0400 (GMT-04:00)
> To: lapidary@caprock-spur.com
> From: Michael & Linda <lakeout@earthlink.net>
>
> Kreigh
>
> You are right I am having trouble focusing on the spectrum. I can capture
> the visual but the lines of absorption are not very well defined. I have built
> an ajustable stand with a webcam molunted on it and used a nine volt lamp
> with a nine volt powed supply from an old portable phone. I am on Holiday,
> and have been unable to work on the project other than to purchase a
> better Webcam from Best Buy. Will try and post pictures to my website on
> my return. Thanks for your input.
> Mike
>

Mike,

Proper focus of the light onto the slit makes a big difference in the
quality of the spectra produced. The narrowness and edge quality of the
slit is also very important -- I usually use razor blades. And you never
have enough light.

The best information I have found on making spectrscopes was in
Scientific American's three volume set "Amateur Telescope Making",
edited by Albert G Ingalls. You may have to sweet-talk your favorite
Librarian into an inter-library loan to find a copy, but it is worth the
effort.

If you are trying to view the spectra directly (instead of from a
reflection) to get more light, it often helps to use a telescope for
viewing. If you can make a (low power) telescope adapter for your camera
from a couple lenses and a cardboard tube you will probably improve your
resolution.

Have a great Holiday. I look forward to your pictures.

Kreigh

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Message:03

Subject: Cutting Pyrite
Date: Sat, 24 Jul 2004 00:41:51 -0400
To: LapidaryArtsDigest <lapidary@caprock-spur.com>
From: Kreigh Tomaszewski <Kreigh@Tomaszewski.net>

LapidaryArtsDigest wrote:
> Message:01
>
> Subject: pyrite, to cab or not to cab? that's the question!
> Date: Fri, 16 Jul 2004 16:33:35 -0400
> To: <lapidary@caprock-spur.com>
> From: <lavenderfish@cox.net>
>
> Hello fellow rock fans,
>
> I have a question about pyrite am hoping someone can answer. Can it
> be cut and cabbed? Obviously the answer is yes, since it gets worked
> when part of a matrix material, but what about making a purely pyrite
> cab? I read earlier today that metal and pyrite struck together will make
> sparks, so have been uncertain as to whether even sawing it was ok
> or a no-no. Especially since my saw isn't terribly far away from an acetylene
> tank! Likely I'm being overly wary, but figured it was worth asking.
>
> Any thoughts/experiences on this? My thanks to any info. somebody can
> share, Carol "cabette"
>

Carol,

Pyrite has been used in jewelry for thousands of years. Yes, pyrite
gives sparks when struck. Its been used for starting fires probably as
long. But that is usually not an issue when cutting wet. You shouldn't
have a problem unless your gas tank leaks.

The biggest problem with working pyrite is that it is brittle. And it is
also somewhat messy.

Kreigh

__________________________________________________________
Message:04

Subject: pyrite, to cab or not to cab? that's the question!
Date: Mon, 26 Jul 2004 10:26:51 -0700
To: "LapidaryArtsDigest" <lapidary@caprock-spur.com>
From: "Donald Clark" <admin@gemsociety.org>

Dear Carol "cabette"
   I have successfully cabbed pyrite and it makes a nice cab, although I
find it more interesting if it has quartz or gold mixed in.20
   If you use water for a lubricant, there is no sparking. The one thing
you have to pay attention to is your clothing. Pyrite turns the water
black and it stains everything it touches.

Don Clark
www.gemsociety.org

__________________________________________________________
Message:05

Subject: DataVue
Date: Sat, 24 Jul 2004 09:32:51 -0400
To: "LapidaryArtsDigest" <lapidary@caprock-spur.com>
From: "All That Glitters" <atggems@netzero.net>

Hi Thurmond -

I know that you have probably answered this before, but I no longer have the
link or info.  There is an application called DataVue which has many facet
designs, correct?  This can also be read into GemCad I believe.  I have
downloaded files previously, have read instructions on loading/installing
but have had problems - as I think many have had.  Can you point me to where
I can get the files again and read the installation, associated info and
caveats for this??

Thanks,

Allen

_______
Hi Allen,  Try this link http://www.gemcutter.com/pioneer.htm . Also
try the search function at the bottom of http://www.gemcutters.org to find
archived issues covering DataVue. It has been spelled several ways in past
digest so keep that in mind while searching. There also has been much
discussion in the past on the USFG list so a search there might be worthwhile.
I ended up installing everything on Windows XP then moving files from a working
Windows 98 install till the errors ended and the program functioned correctly.

Thurmond
__________________________________________________________
Message:06

Subject: new: saw instructions
Date: Sat, 24 Jul 2004 15:55:37 -0400
To: <lapidary@caprock-spur.com>
From: "Becca Duff" <bayroo@atlantic.net>

I recently purchased a used Barranca 10 inch slab saw, a picture of
which can be seen at http://bayroo.members.atlantic.net/10slabsaw.jpg .
It did not come with instructions. I have contacted Barranca SEVERAL
times and have heard nothing back from them. Would any of you kind souls
out there have one of these saws and be willing to copy your set of the
instruction manual for this saw and send them to me. I will be more than
happy to pay postage and any expenses you may incur. I need to change
the blade on it and my husband has tried to get the old one off and
can't get it to budge. He is afraid he may break it if he forces it. We
are hoping the instructions tell you how to change the blade PROPERLY.
Thank you kindly in advance.20
Becca Duff

__________________________________________________________
Message:07

Subject: Re: Issue No. 244 - Wednesday, November 12, 2003
Date: Sat, 24 Jul 2004 19:30:15 -0400
To: LapidaryArtsDigest <lapidary@caprock-spur.com>
From: Don Henderson <dandwh@y-city.net>

7-24-2004

Greetings,
I am a very novice facetor. Enjoy the efforts but do not or have not
practiced enough to become proficient.
I do have an interest to facet some glass crystals that will produce
rainbows from the morning and evening sunlight more than faceting gem
stones. I have a source of good scrap glass. Can you please tell me
where I can obtain faceting instructions to produce these crystalline
patterns?

Sincerely,

Don Henderson

_______
Hi Don, See the answer to question 5 above. You most likely will want patterns
for Briolette's. Datavue 2 has several of these patterns. Obtain also a copy of
GemCad for dos (free) or windows (about $100) into which these datavue files
can be imported and printed or altered. Another source of patterns is the USFG
website and the Old Pueblo Lapidary Club's CD from Bob's Rockshop. Jeff Graham
also has some free designs on his site. http://www.faceters.com/designs/
I am sure some members can help with designs as well.

Thurmond
__________________________________________________________
Message:08

Subject: RE: turquoise
Date: Wed, 28 Jul 2004 15:24:14 +0300
To: lapidary@caprock-spur.com
From: "rehema kolly" <rehema_k@hotmail.com>

I dont write often but since you said it is quiet, i would give it a try,

Thank you for the information on the turquoise.

I did a read up in my book called, gemstones of the world revised edition.
page 170 it says the coloring agent for blue tones is copper, however it
says the coloring agent for green tones is iron.
Now my question is thus, if it is iron for green and copper for blue, does
this mean the copper is NOT present in the green stones?.
thus the cual6. . .+ .+ . +.  is replaced by FE and becomes feal6. +. +. +.
. ?.

I look foward to reading your response. thanks

Rehema.

_______
Hi Rehema, I don't believe that iron totaly replaces the copper but is an additional
component in the "mix". Some of you chemist or gemologist want to jump in here?

Thurmond
__________________________________________________________
Message:09

Subject: Re: Issue No. 294 - Friday, July 23, 2004
Date: Sat, 24 Jul 2004 00:53:08 -0400
To: LapidaryArtsDigest <lapidary@caprock-spur.com>
From: Kreigh Tomaszewski <Kreigh@Tomaszewski.net>
Cc: nival42@hotmail.com

LapidaryArtsDigest wrote:
> TODAY'S FUNNY ~
>
> Subject: FW: Fwd: Fw: Yes,I'm a Bad American
> Date: Sat, 17 Jul 2004 06:34:13 -0400
> From: "Frank lavin" <nival42@hotmail.com>
>
> YES, I'M A BAD AMERICAN
> by George Carlin
>

GeorgeCarlin.com and most of the urban legend sites say this is bogus.
Put "Bad American by George Carlin" into Google. But I appreciate the
sentiment.

Kreigh

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Lurking is fine, but participation is better for learning !
Post something from your experiences in gemcutting today!
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TODAY'S FUNNY ~

DEADHEADS

A man in Orange County Municipal Court had been
ticketed for driving alone in the carpool lane. He claimed
that the four frozen cadavers in the mortuary van he was
driving should be counted. The judged ruled that passengers
must be alive to qualify.

THIS WOULD BE ME

The judge called the case of People vs. Steven Lewon Crook.
The bailiff opened the door to the holding cell and called, "Crook,
come forward." Five of the prisoners entered the courtroom.

LEARN YOUR LESSON

When asked for her occupation, a woman charged with a traffic
violation said she was a schoolteacher. The judge rose from the bench.
"Madam, I have waited years for a schoolteacher to appear before this
court," he smiled with delight. "Now sit down at that table and write 'I will not
pass through a red light' five hundred times."

AHH, THAT'S BETTER!

A judge in Louisville decided a jury went "a little bit too far" in recommending
a sentence of 5,005 years for a man who was convicted of five robberies
and a kidnapping. The judge reduced the sentence to 1,001 years.

OOPS! I BLEW THAT ONE!

A lawyer defending a man accused of burglary tried this creative defense:
"My client merely inserted his arm into the window and removed a few trifling
articles. His arm is not himself, and I fail to see how you can punish the whole
individual for an offense committed by his limb." "Well put," the judge replied.
"Using your logic, I sentence the defendant's arm to one year's imprisonment.
He can accompany it or not, as he chooses." The defendant smiled. With his
lawyer's assistance he detached his artificial limb, laid it on the bench, and
walked out.


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