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LAPIDARY ARTS and FACETERS DIGEST
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Issue No. 215 - Monday, September 29, 2003
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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
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Hi All,

Hale Sweeny gave his OK to put up the Entire
Lapidary Digest site at gemcutters.org so the link
is active now. It has some dead links and other dated
material that will be revised as time allows.

Thurmond

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Index to Today's Digest

01  RE: Cutting Ovals !
02  RE: Cutting Ovals !
03  RE: Cutting Ovals !
04  RE: Cutting Ovals !
05  RE: Spheres
06  NEW: Tazmanite gem ?

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Message:01

Subject: CUTTING OVALS
Date: Sat, 27 Sep 2003 20:37:47 +1000
To: <faceters@caprock-spur.com>
From: "Arch & Jan Morrison" <archnjan@serv.net.au>

Re message 8 of Thu 25 Sept from Dan Clayton
SNIP<Breakpoint
3) chain cut "halfmoon" break facets at given indices which
will be different than pavilion mains already cut.
4) chain cut girdle facets at the same indices as the halfmoon
facets.>SNIP
Managed to follow your input except the "chain cut" instruction.
Fred Van Sant's K12 Oval 1.6 has the following steps for the break
facets:-
4  46.00    18 - 30 - 66 - 78
5  61.94     09 - 39 - 57 - 87
6  72.5       03 - 45 - 51 - 93
To "chain cut" do I cut all of step 4 then all of step 5 ....etc or do I
cut, in sequence, index 03, 09, 18, 30, 39...etc.

Arch Morrison
Buderim, Queensland, Australia

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Message:02

Subject: Re:Ovals
Date: Sat, 27 Sep 2003 13:14:57 -0700
To: faceters@caprock-spur.com
From: Phillip L Stonebrook <plstonebrook@juno.com>

Congrats Peter on the successful cut of your oval. I'm glad that
cooperative folks like Jim Perkins and Dan Clayton were able to lend you
a hand, and God's grace also helped you keep up your determination, and
maybe your cool!

<<Well my amethyst was almost a  1.6 and .... NO BOW TIES here .... the
stone is over 6 cts and
I have yet to see an oval .... locally that is that can match its fire
and feedback>>

I would certainly like to see the design of this cut, if possible, as
well as the actual main angles you used to cut this amethyst high L/W
oval without bow-tie.

My best ovals have been either the OMNI oval L/W 1.5 by RStrick cut in
tanzanite and sapphire, or the L/W 1.5 SUPERNOVA by L&S in quartz.
Several other designs are also good at lower aspect ratios.

Best regards...
Phil in Florida

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Message:03

Subject: Introduction and Cutting Ovals
Date: Sat, 27 Sep 2003 14:18:57 -0400
To: Lapidary Arts and Faceters Digest <lapidary@caprock-spur.com>
From: lapilia <lapilia@videotron.ca>

Hi everyone
 
I've been cutting gemstones for 10 years.  Although I'm mainly interested in soft
gems (hardness between 1 and 4) , I've never cut such soft material mainly because
nice pieces of rough are hard to find and usually very small in size.  I admire a lot
those on the list who cut soft gems.  It is one thing to cut accurate meetpoints,
achieve perfect polish or exact girdle thickness, but it is quite a different story
to do it on gems with multiple clivage planes and extreme fragility or heat
sensitivity.  To my eyes, you are the true master gemcutters.  The other ones,
including myself, are only good facetters with good loupes and good machines.
 
My other field of interest is gemstone design.  A few years ago, I published some of
my designs with cutting instructions on my website. Unfortunately, I had to take them
off because other sections (gemstones listing and pictures) were taking too much
space on my server.  The main topic of the digest being Ovals at the moment (one of
my preferred designs), I'll make an exception and put on my website an oval design
that I made a few years ago. You'll find the cutting instructions and a picture of a
5.20 cts red spinel that I cut according the instructions at the following address. 
Hope you'll enjoy !
 
 http://www.lapilia.com/1spin520.htm
 
My best regards to all ...

Claude Marc-Aurele



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Message:04

Subject: Ovals
Date: Mon, 29 Sep 2003 02:12:11 -0400
To: faceters@caprock-spur.com
From: "Douglas Turet" <anotherbrightidea@hotmail.com>

Hi Thurmond,

     Okay... I'll bite: I do cut ovals, from time to time... but primarily
under one of three conditions: 1) if it's a faceted stone recut for a
client; 2) if that's the best possible shape to maximize the yield for a
given piece of rough I have on hand (especially if the piece is too fine or
too large to send overseas. or too rare to just sell outright, as rough), or
3) if I'm on one of those wild, creative tears where I think I can
exponentially improve the brilliance of a given cut by tweaking the facet
arrangements, or altering the symmetry in some other way. For the most part,
though, I try to avoid the so-called "squished rounds" (ovals and marquises)
because so many of them are cut overseas that I have trouble competing on
them. Another exception to the rule might be Barion-type pavilions (with or
without "Zircon"-type culet treatments), coupled with either opposed bar,
checkered or carved crowns. Now *there's* what I call a challenge {:o)!

All the best,
Doug

Douglas Turet, GJ
Turet Design
P. O. Box 162
Arlington, MA 02476, U.S.A.
Tel. (617) 325-5328
Fax: (928) 222-0815
Email: anotherbrightidea@hotmail.com

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Message:05

Subject: Re: Issue No. 213 - Thursday, September 25, 2003
Date: Sat, 27 Sep 2003 08:03:55 -0700 (PDT)
To: LapidaryArtsDigest <lapidary@caprock-spur.com>
From: joe piz <pizzij@yahoo.com>

> > From: "Paul Wheaton" <paul.wheaton@virgin.net>
\ expressed a wish to make some
> herself.

Hey Paul:

I hope to try to make my first sphere soon...your daughter might want
to take a look at this, a Yahoo group just about sphere making.

http://groups.yahoo.com/group/spheres

good luck!

joe

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Message:06

Subject: Anybody ever heard about Tazmanite gem ?
Date: Mon, 29 Sep 2003 10:50:37 -0400
To: lapidary@caprock-spur.com (LapidaryArtsDigest)
From: mbegin@is.jgh.mcgill.ca

A friend  told me that he has a stone of Tazmanite ( probably a family of
Diopside ) but I never found any information
about a stone with that name . Anybody know ?

_______

Could he mean tanzanite a species of zoisite?

Thurmond
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TODAY'S FUNNY ~

     A businessman boards an airplane to find that his neighbor in first
class is a parrot.  They take off and the stewardess asks what they
would like to drink.  "I'll have a Coke," says the parrot.  The
businessman also orders a Coke.  After waiting two or three minutes, the
bird starts yelling, "Where's my drink?!  Stop fooling around and give
me my drink!"

      The stewardess runs to him with his glass, leaving the businessman
still thirsty.  Half an hour later the stewardess makes a second round.
The bird orders another Coke and a Wall Street Journal.  The businessman
asks again for his Coke.  Again, after waiting a couple of minutes, the
bird screams, squawking, "Are you lazy or stupid?  I want my drink, and
don't forget my paper!"  The poor stewardess nearly trips over herself
getting the parrot his drink and the newspaper. The businessman still
has nothing, and after ten more minutes he decides to take his cue from
the bird.

     "Hey!  Bring me my Coke right now!" he shouts.   Out of nowhere the
stewardess, the captain and two passengers grab the businessman and the
bird, open the hatch and throw them out of the plane.  At 30,000 feet,
the two are falling side by side.  The parrot says to the terrified man,
"Wow -- that took a lot of guts for a guy with no wings!"
   
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TIDBITS AND REFLECTIONS~

Dogs

"Ever consider what they must think of us? I mean, here we come back
from a grocery store with the most amazing haul -- chicken, pork, half a
cow. They must think we're the greatest hunters on earth!"

---Anne Tyler---

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