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LAPIDARY ARTS and FACETERS DIGEST
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Issue No. 299 - Friday, September 03, 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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Hi all,

Sorry about the late list. I was out of town and am leaving again
till Tuesday.

Thurmond
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Index to Today's Digest

01  NEW: Disclosure
02  RE: Rayteck-Shaw Faceting Machine
03  RE: Rayteck-Shaw Faceting Machine
04  NEW: Alexandrite Orientation
05  FS: Synthetic Alexandrite
06  NEW: queenstone

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Message:01

Subject: Disclosure
Date: Fri, 27 Aug 2004 19:52:47 -0700
To: <lapidary@caprock-spur.com>
From: "Galarneau's Gems" <gggemswcr@cox.net>

All,
  There is a very good article in the Gems & Gemology about disclosure
and how it effects liability.  The article is written by a lawyer and
raises many questions.  Of particular interest or me was the fact that
the law assigns great responsibility to the person selling the stone to
know what treatment the stone has been subjected.   That includes rough
materials as well as finished goods.  If you do not subscribe a trip to
the nearest large library should give you a copy of the article.

  TTFN,
  Gerry Galarneau

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Message:02

Subject: Re: Issue No. 298 - Friday, August 27, 2004
Date: Sat, 28 Aug 2004 04:00:33 -0400
To: lapidary@caprock-spur.com (LapidaryArtsDigest)
From: Donald Allen <donallen@gwi.net>

RE:
can help me with books/manuals on the Rayteck-Shaw machine

http://www.raytech-ind.com/

Also email Don Rogers:
Don@Campbell-gemstones.com
Ask about a raydial, he can convert your Raythech machine into a soft
stop machine with a dial.
It's great.
Don

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Message:03

Subject: Re: Rayteck-Shaw Faceting Machine
Date: Sat, 28 Aug 2004 10:01:30 -0700
To: lapidary@caprock-spur.com (LapidaryArtsDigest)
From: Don Rogers <Don@Campbell-gemstones.com>

At 08:25 PM 8/27/2004 -0500, you wrote:
>Hi,
>I came across a nearly new machine and wonder if their is any body out
>there that can help me with books/manuals on the Rayteck-Shaw machine.
>Thanks
>Del

Del, take a look at my Alignment article and my RayDial modification.  The
two will give you a lot of information on the machine, but not on how to
cut stones.

http://www.campbell-gemstones.com/LJarticle/

and

http://www.campbell-gemstones.com/raydial/Index.htm

Once you have properly set up the machine, you will find you really enjoy
cutting with it.

Don


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Message:04

Subject: Alexandrite
Date: Sat, 28 Aug 2004 23:20:57 -0400
To: "LapidaryArtsDigest" <lapidary@caprock-spur.com>
From: "All That Glitters" <atggems@netzero.net>

Anyone know the best way to orient Alexandrite for cutting?   The synthetic
is always a nice red to pink (at least with the material we have) and the
color change has been a teal to purplish with teal in previously cut stones.
Would one typically cut the table where the best purple and green or purple
and blue-green colors show up within a dichroscope??   The material is quite
tri-chroic, showing a purple, an orange and a teal down the diff axes under
a particular fluorescent light here in the office(and red to pink in pretty
much all directions under incandescent).  Tilting the rough slightly starts
to mix the colors a bit getting interesting dichroic colors in the
dichroscope including, purple, blue, teal, green, orange, yellow, etc.

Depending on the orientation when cutting, it seems that one will get a
knockout red to pink to a variety of colors.  If attempting teal or green,
how does one orient the material??

Thanks,

Allen

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Message:05

Subject: Synthetic Alexandrite Rough - Laser Rod Material.....
Date: Tue, 31 Aug 2004 14:51:57 -0400
To: "LapidaryArtsDigest" <lapidary@caprock-spur.com>
From: "All That Glitters" <atggems@netzero.net>

We just bought a large boule of Syn Alex and are cutting it up into smaller
segments and will offer it to cutters initially, vs. selling a kilo to the
manufacturers.

We currently have the following available from some slices of the boule -
photos are available upon request.

28.92 grams - 3 pcs
30.29 grams - 4 pcs
40.64 grams - 1 pc
33.70 grams - 1 pc

$7(US) per gram - plus $12 for shipping and insurance.

The description of the material is below.

Hope all is well over there!

Allen


This material is a byproduct of laser rod manufacturing.  We purchased
a large boule and are in the process of trimming pieces.   The color under
incandescent light is reddish pink; under fluorescent lights, it depends on
how one orients the axes.  Using a dichroscope, one can see purple, teal,
blue, green, orange and yellow.  We have cut a few pieces here in the US and
it goes from reddish pink to purple with teal.  It depends on the
orientation of the rough.  Note that this material is lighter than other
Alexandrite out there and it allows one to cut very large stones without the
stones being too dark.  At 15mm in diameter, the color is strong without
being too dark.

Write us for any more info, for a photo of this rough, etc.
This is nice material for cutting for your personal use or for resale.  One
should be able to more than triple the investment.  We also have a photo a
few stones cut in the past, but again, we are not sure if we oriented it
properly, but regardless of this, the color is really nice, the material is
clean, etc.

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Message:06

Subject: "queenstone"?
Date: Tue, 31 Aug 2004 06:00:11 -0400
To: lapidary@caprock-spur.com (LapidaryArtsDigest)
From: Jim Small <jsmall47@earthlink.net>

Hi Thurmond,
I've been reading old lapidary magazines recently, and in both Gems and
Minerals and Lapidary Journal I've seen articles (printed in the early
1960s) which refer to "queenstone" in conjunction with Morrisonite picture
jasper. The way this material is described it seems to be Morrisonite which
has altered to opal, still showing the color and pattern of Morrisonite.
I'm curious if any other members of the list know of this material, and can
provide any personal comment on it?

Thanks,

Jim Small
Small Wonders Lapidary


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