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LAPIDARY ARTS and FACETERS DIGEST
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Issue No. 188 - Friday August 15, 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,

Good List again today! Keep up those post.
Everyone have a great weekend. See you
all on Monday.

Send your PICS for posting to:
owner-lapidary@caprock-spur.com


Thurmond

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Index to Today's Digest

01  RE: How to learn faceting
02  RE: John Sinkankas
03  RE: Small Stone Facets
04  NEW: ceramic lap troubles
05  NEW: Two agates
06  NEW: stone display
07  RE: Small Stone Facets

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Message:01

Subject: RE: Issue No. 187 - Thursday August 14, 2003
Date: Thu, 14 Aug 2003 19:29:38 -0400
To: "'LapidaryArtsDigest'" <lapidary@caprock-spur.com>
From: "James Taylor" <james.d.taylor@att.net>

To all of you that answered my question about How to learn both on and
off the forum, Thank You!  You have all given me things I need to do,
books to get, a machine to find, etc.  Be assured, you'll get tired of
my questions long before I learn, but you offered.

Thank you again

Jim Taylor

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Message:02

Subject: John Sinkankas
Date: Thu, 14 Aug 2003 19:47:59 -0700
To: LapidaryArtsDigest <lapidary@caprock-spur.com>
From: TA Masters <tam2819@cox.net>

John was a resident of the San Diego area, his book company name
Perilithon (sp) and advertised in Rock and Mineral magazines.

Keep an eye out on several of the book companies that allow individuals
to post their own books for sale such as Amazon and Barnes & Noble.
Teresa

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Message:03

Subject: Small Stone Facets
Date: Fri, 15 Aug 2003 19:32:21 +1000
To: <lapidary@caprock-spur.com>
From: "Arch & Jan Morrison" <archnjan@serv.net.au>

Re:- Issue 186
<Have any of you faceted small stones (the rough is about 2 carats and
less) with fewer facets that you can offer advice on cutting angles and
the number of facets that will end up being sparklers? Any help would be
appreciated.>

Some time back I cut a (very) tiny zircon for my grand-daughter. I cut
it as a SRB (73 facets) and it was disappointing. Too many facets and
too much light return. It didn't sparkle, it just glowed and it wasn't
very interesting.
I have since cut a 4mm Sapphire as a Petal Cut (33 facets + 8 Girdle
facets) and this gave a much better performance and sparkled as it was
moved around. So I can recommend that one. (Page 109 in my 1969 Vargas
Faceting for Amateurs - or Code 21.018 in DVue2). Searching under the
name "petal" in DVue2 gives 5 designs three of which would be suitable
but any design that you can find with a small number of facets should be =
OK.
It is a matter of "Facet Density". In the same way that the small stone
requires less facets than normal in order to retain sparkle, a much
larger stone will require more facets than normal to avoid looking dead
and lifeless. HTH.
Arch Morrison
Buderim, Queensland, Australia
(Still Winter and the temperature is a chilly 15/22 degrees C)


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Message:04

Subject: ceramic lap troubles
Date: Fri, 15 Aug 2003 07:08:42 -0400
To: <lapidary@caprock-spur.com>
From: "gene goodwin" <g.m.goodwin@worldnet.att.net>

Hi, Folks...

Having polished 35-40 stones successfully with my ceramic lap, I was
certain I had the technique perfected. Not so.  Recently, when I
switched to a new bottle of 100K spray, large scratches appeared. Having
finished half the stone successfully with the old bottle, I know it's
not the stone. I've tried using less spray, and wiping it off more
thoroughly, but nothing seems to help. Anybody got any ideas?

Gene Goodwin
Tennessee

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Message:05

Subject: Two agates
Date: Fri, 15 Aug 2003 10:28:01 -0400
To: <lapidary@caprock-spur.com>
From: "Derek" <stoneage@vermontel.net>

I have two forms of agate that I'm trying to identify.  The first is
what I understood to be eye agate or perhaps tube agate.  It is like a
drusy on the surface but inside has light blue eyes with a red and
yellow moss beneath.  It's quite attractive.  I'd like to know where it
comes from, how common it is, and what it's called.  I'll send photos to
anyone who shows an interest.

The second is a plume agate however the plumes are of a light
copper-colored metal that when I'm cutting is black and fairly soft.  I
don't believe it's iron but don't know what it is.  The rest of the
stone surrounds the metal and is yellow and white.  It has a drusy
crystal top.  Again photos on request, or suggestions as to who might
answer my questions.

Thanks all,

Derek Levin

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Message:06

Subject: stone display
Date: Fri, 15 Aug 2003 07:51:40 -0700
To: <faceters@caprock-spur.com>
From: "Blaise Harper" <blaise@teknett.com>

Hello All, Would someone please tell me where I can find the kind of
heavy duty ziplock bags that New Era Gems mails their rough stones in?
What they use is big enough for one stone. I have looked all over the
internet to no avail. I've been using the little white plastic boxes but
they are not entirely good. During transport from vibration the glass
can scratch a soft stone. A hard stone can scratch the glass. A stone
imprint does not go away so later stone placements don't look so good.
If dropped on the floor the stone could be damaged. Lids can pop open.
After handling these heavy duty ziplock holders from New Era Gems I
think I would like to switch to them for stone display and for shipping.
They don't have lint problems plus you can see the stone top and bottom.
If dropped nothing will break. It would be easy to throw several hundred
of  these in a bag and take off  for a show. The customer can view the
stone top and bottom without risk of stone damage. So if anyone knows
where to get this very special heavy duty bag then the info would be
very appreciated...blaise harper..


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Message:07

From: "Rich" <richtherm@bluemarble.net>
To: <lapidary@caprock-spur.com>
Subject: Another Ruby...
Date: Thu, 14 Aug 2003 19:01:16 -0500

Hi Thurmond,

Here's a stone that was on the dop, off the dop, back on the dop...... 
I call it the Yo-Yo.....  It started out a 10.26 C natural ruby with
dings, chips and a major chip on the girdle that extended into the
pavilion (I have pics of this also if you would like).  It ended at 9.93
Cs.  Couldn't make everything meet perfect because of the native cut and
saving weight issues, but the customer is happier than a lark....... 
Sorry, I'm still working on the picture routine.  Ansel Adams I am not.

Rich


http://www.gemcutters.org/showcase/images/before_ruby.jpg
http://www.gemcutters.org/showcase/images/after_ruby.jpg

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Message:08

From: charles bell <bellcha@yahoo.com>
Subject: post #8,AUGUST 14,2003 SMALL STONES
To: lapidary@caprock-spur.com

Small stones can be to some cutters like large stones
are to others. Some figure skaters don't do partial rotines
for and audience of 1000's or one.
 
If you don't cut all the facets on a said stone big
or small , call it other than what the pattern  says it
is. =a FULL CUT SRB; is just that.(BESIDES THOSE
LOST FACETS ARE LURKING AROUND IN YOU.)-
you don't want them to come out when you least expect
them , enough of them will anyway. hehehe
 
When I play someones  music I have to play their tune,
if its my song I can do what I want.Size is just a personal
wall , that you can make become "as a matter of fact...".
 
I mean there are 80,000 ,yes 80,000 diamond cutters 
on the hillsides  in INDIA,that facet 58 fullcut SRB s on
sub 1 mm stones.
 
So  without sounding too harsh, like when the SGT. 
says you're going on MANUVERS !
SIZE-GET OVER IT.                                      

CHARLES W. BELL JR.

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TODAY'S FUNNY ~

There was a woman who spent some months serving as a missionary in
South Africa.  On her final visit to a remote township she attended a
medical clinic.  As the Zulu women there began to sing together, she
found herself deeply moved by their hauntingly beautiful harmonies. She
wanted to always remember this moment and try to share it with friends
when she arrived home.  With tears flowing down her cheeks, she turned
to her friend and asked, "Can you please tell me the translation of the
words to this song?"

     Her friend looked at her and solemnly replied . . . "If you boil
the water, you won't get dysentery."

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