committed to carrying on the fine works started
by Hale Sweeny and Jerry Dewbre
Issue No.6 - Tuesday November 12, 2002
Click a link below to post to the list:
for faceting questions faceters@caprock-spur.com
for other lapidary questions lapidary@caprock-spur.com
List Posting Guidelines and rules can be found at:
Web Site http://www.gemcutters.org
Published Monday thru Friday, except holidays
from deep in the heart of rural Texas
The Lapidary Arts Digest is moderated by:
Thurmond Moore III & Fred Ward (Gemology)
From the Moderator:

Since the IFA as well as the facetersdigest website
was returned to Paul Ahlstedt I am pleased to
announce that we have a NEW website more
appropriate in name to the New combined
topic digest.


You will find much of the content from the original website there
as well as Archives of past issues (added as time permits),
the current issue and list rules. Content will be added to this site on a
fairly regular basis (more often if you contribute content). Many other
additions are planned for the website.

These changes do not have any effect on list distribution or posting.

Index to Today's Digest

Lapidary Messages:
01 diamond heat sinks
02 Cutting oils
03 Re:Broken dish
04 Re: treated turquiose
05 Continuous Rim Saw Blades
06 Re: Opal clams
07 Re: Opal clams

Faceting Messages:
08 princess cut?
09 Recutting Badly Cut Stones

Business Section -

No messages


Subject: diamond heat sinks
Date: Fri, 08 Nov 2002 12:49:00 -0800
To: faceters@caprock-spur.com
From: "P. Miklik" <b-daw@pacbell.net>

hello group and thurmond,
thurmond, your background in electronics has sparked an interest in me.
i, too, love electronics and can whip up a computer from scratch, no
problem. recently, my am faceting instructor passed on a book to me
about gemmology (an english version, hence the double "m"). i was
reading the section on synthetics and it was describing these huge
yellow diamonds which were used as heat sinks for some type of
electronics. the book failed to mention whay type of electronics used
these, large interesting diamonds and i was wondering if you knew or
maybe some from the group may know? i am a true scavanging rockhound
and would love to get my hands on some old dead piece of electronic wear
with a large diamond heat sink!!! fat chance, i know, but out of
curiosity maybe someone knows?
take care all,
so cal
ps...i am enrolling into san diego gem & minerals gemology course and we
are starting our first class this saturday! i am excited!


Sorry Patty,

I have never heard of such a device. There are diamond composite heatsinks
for some semiconductor devices. Our research areas were doing thinfilm diamond
on various substrate materials when I worked in the semiconductor industry but that is
as close as I would have been to the device you describe.



Subject: Cutting oils
Date: Fri, 08 Nov 2002 21:03:46 +0000
To: lapidary@caprock-spur.com
From: "Keith Torckler" <titotal@hotmail.com>

If the list members are able to get into the archives of the craft and
jewellery list "orchid'they will find considerable discussion re cutting
oils. I had some input which created some argument, however I stand by my
suggestions having used them along with other hard stone cutters for many
years without any problem. I won't take up space here with details as it is
all recorded in those archives mentioned.

I will make only two suggestions here, for those who are bothered by an oily
coating on their slabs, keep a strong detergent solution by the saw and put
in the slabs in as they come off the saw I also know of cutters who use a
sawdust type compound used by motor repair garages for use on oil spills on
the workshop floor.

The only material I use water on the saw for is nephrite jade, reasons: it
does the job well, no mess and unlike oil doesn't get into and hide cracks
and flaws in the jade.

Incidently I see one correspondent suggests most opal is the same hardness
as quartz. I presume he must be talking about opal from a particular area
as the opal I am familiar with from Australia is around 5.5 as opposed to
the 7 of quartz, given that it is an accelerating scale, this is a
considerable difference.

regards and compliments on a well run list

Keith Torckler, Cornwallis, New Zealand



Subject: Re:Broken dish
Date: Fri, 8 Nov 2002 16:47:49 EST
To: faceters@caprock-spur.com
From: JewelryGems@aol.com

Your ceramic bowl most likely had metal(lead in the glaze) and that is why it
heated and then broke. Fast or slow it would still have cracked...Pottery
another specialty of mine :0) I recommend microwave safe dishes from now on!




Subject: Re: treated turquiose
Date: Fri, 08 Nov 2002 17:45:09 -0700
To: faceters@caprock-spur.com
From: John McLaughlin <jemstone@amug.org>

> I have never had any experience with this, but the Bad Boys of Cripple Creek say they have
> some of the hardest and that yes it will scratch glass. I mention this because they will
> sell you less than a pound (8 oz. Or so) at the price of the pound (half pound is half the
> price). I ASKED. As said I have no idea of what this material is like but perhaps some
> members do, but if the cost of a pound is a bit much, (and for many of us it is) this might
> work and should give you hard stone. This comes in "flats" (if asked for, as well as chunks
> etc.) so with waste considered if using it for cabbing it might be a better bargain than
> some of the Chinese stone (which is often take it or leave it).

I would advise to use caution when dealing with the Bad Boys of Cripple Creek. My
sister-in-law bought me a gift from them she was sure I would love. She described the
material as turquoise with gold in it, as it was explained to her by the folks at the mine
shop. What I got was 2.25 ounces of turquoise shot through with limonite. She paid $100 for
the parcel, all of it included throughout with limonite. I did not choose to tell her about
what she had purchased. She did it with a good heart and was sure I would be thrilled. I
told her I was thrilled - what else? I'm very lucky to have such thoughtful sister-in-law.

My advice would be to insist on close examination of the turquoise prior to completing the
sale with this organization. The turquoise I received is hard enough - yes it scratches
glass, proving it is a bit over 5.5 on the MOHS scale. However, the limonite running
throughout the material detracts significantly from the turquoise, as it is far too soft to
take a polish.

As this is just one experience, it may not be sufficient to warrant generalizing about the
company. However, anything bought sight unseen should have a money back return privilege.

John McLaughlin
Glendale, Arizona



Subject: Re: Issue No.5 - Friday November 8, 2002
Date: Sat, 9 Nov 2002 01:30:12 EST
To: faceters@caprock-spur.com
From: Send2mail@aol.com

Continuous Rim Saw Blades..

I was not aware that MK made an 18 inch Continuous Rim Blade..

Which model number of the MK blades ... ? 297 , 301 , 303 ....Are your sure
you don't mean a sintered blade, which has a notched rim, or a segmented

I think the NU-TEK brand of blades, with smart cut technology, have
Continuous rims up to 16"..... and maybe 18" ?? .... But I was under the
impression that MK stopped their continuous rim blades at 14", due to some
type of cutting problems........?



Subject: Opal clams
Date: Thu, 9 Nov 2000 18:45:00 -0800
To: faceters@caprock-spur.com
From: Tony <lightbender@thegemdoctor.com>

On November 8, 2002 01:06 pm, you wrote:
> In the parcel was an opalized clam or oyster (sorry, don't
> know my opal or mollusks) that weighs 39.5 Cs. The opal skin
> (shell) has a small chip showing good color and play lies
> beneath the outer skin. Here's my question..... How in the
> world do you know how to best cut these things?????? Is there
> some sort of magic to orienting opal?

Hello Rich,

Here are a few opalised fossils.
The completeness of the fossil has a direct influence on the
value. The opal content may easily exceed this. If you have both
complete fossil and good opal the value can be quite high. The
$3,150.00 fossil on the above page has good clam definition on
the obverse.

There is no magic in opal orientation but there is a lot of luck.
No other gem provides the cutter with the thrill of discovery
that opal does. The trick is to cut, or peel the opal a little
at a time as some colour layers may be quite thin, the decision
to cut through colour in the hopes of finding better play is
probably the biggest source of disappointment. Sand and polish
any colour before careful re-examination and further cutting.

When I first started cutting back in '74, I discovered opals and
have been addicted ever since. Recently Patrick of OpalsInThe
Bag.com acquired a pound of Lightning Ridge black opal from one
of his mining mates, I have cut a few of stones from this parcel
and having been having so much fun I question the legality of
it. haha.




Subject: Those Damn Clams
Date: Mon, 11 Nov 2002 10:05:27 -0700
To: lapidary@caprock-spur.com
From: "Larry McCoy" <larrymccoy2000@hotmail.com>

Hi gang, in response to the question re opal clams. Ok opal often replaces
things that have left their outline in the ground, they can be pretty neat
shapes. The downside to clams is that they are often filled with sand that
comes up in the opal when cutting. Get a good strong light and candle the
clam to find the sand (if any), the sand tends to be somewhere near the

For orienting the color in opal. I start out by skining or nicking the
roughs so I have a few small windows to look into. Then at night or in a
dark room I use a low watt light (usually 20 to 40 watt) and look to see
what direction the color comes up the best then mark the stones. Ok why the
low light and dark room? Well opal often has several colors but one is
usually much brighter than the others, if you use a bright light all the
colors will try to come up and it can be hard to see which is the brightest.
In a weak light only the strongest colors will show. Then its just a matter
of seeing if the color comes up flat on the table (ring stone) or held in
front of you (pendant stone) its usually one way or the other.




Subject: princess cut?
Date: Tue, 12 Nov 2002 12:58:05 -0500
To: <faceters@caprock-spur.com>
From: "Michael and Linda Lauer" <lakeout@charter.net>

Hello to All,
Does anybody have a diagram for cutting a Princes Cut stone? My wife saw =
one in a jewelry store and would like one cut for herself.




Subject: Recutting Badly Cut Stones
Date: Sat, 9 Nov 2002 09:31:33 -0700
To: <faceters@caprock-spur.com>
From: "Galarneau's" <gggemswcr@cox.net>

I have been recutting badly cut stones for the last 20 years. My
experience has shown me that unless you are a very experienced stone
cutter you will lose too much of the rock to make recutting practical.
Several things come into play in recutting a stone which are not
taught by anyone I know of in traditional facetting. First and foremost
is judging the stone as to whether it is a cutter or not. This you must
learn yourself and after you buy a few hundred stones that do not work
out financially you will either learn that you have bought the wrong
stones or quit recutting.
Second is dopping the stone. Most important is dopping as close to
exact center of mass as possible. I have built many jigs to accomplish
this. In the overall though it is your eye that determines if you have
the correct dopping.
Third is a total understanding of the way that light reflects and
refracts in each and every gemstone material. This understanding will
allow you determine which facets you want to change, where you need to
add facets, and what effect you expect to see when you have the stone
off the dop.
Forth you must remember that when recutting your goal is to improve
the stone. Making the stone into an art work of precision cutting is
not a worthwhile goal in recutting. You will starve to death
financially if that is your goal.
In summary recutting is a job for a very advanced lapidary. Those of
you that think you have mastered the challenge I suggest you by a 200
carat parcel of Bangkok Beauties. Weigh each stone, keep track of your
time. and recut each stone. In the end if you have turned out a
finished stone that can command a premium for your time you are an
advanced lapidary. If you cannot you have a ways to go.
My opinion is straight forward - With today's facetting machines
anyone with time, patience, and ability to listen and perform can learn
to machine a stone in a very short time. It takes a lapidary to perform
recutting and repair.

Gerry Galarneau


Hale Sweeny's Lapidary Digest Archives http://www.lapidarydigest.com/
ILA Lapidary Arts Digest Online http://facetersdigest.org/toady.htm


Facetron: http://www.facetron.com/
Graves: http://www.rockhounds.com/graves/
MDR: http://www.mdr-facet.com/
Polymetric: http://www.polymetricinc.com/
Ultra-tec: http://www.ultratec-facet.com
Fac-Ette Manufacturing Company: (910)256-9248
http://www.fac-ette.com/ 800-336-9248.
Raytech Industries: http://www.raytech-ind.com
Rock Peddler: 1-800-416-4348 / www.rockpeddler.com



Accredited Gemologists Association, http://aga.polygon.net/
American Gem Society, (AGS) 702-255-6500
American Gem Trade Association, (AGTA) http://www.agta.org
Gemmological Assc. & GTL / Great Britain, http://www.gagtl.ac.uk/gagtl
Gemmological Association of Australia, http://www.gem.org.au
Gemological Institute of America, (GIA) http://www.gia.edu.giagem
International Gem Society (IGS) web site is: http://www.gemsociety.org
International Colored Gemstone Association, http://www.gemstone.org


FACETING GUILDS (Alphabetically, World) ~

*Charleston Faceting Guild, South Carolina, wmcnay@mindspring.com.
*Columbia-Willamette Faceter's Guild, http://www.facetersguild.com/
*Danish Faceters Guild, http://medlem.spray.se/danfacet/
*East/Central Florida:Tomoka Gem and Mineral Society's Faceters Guild,
Don Cameron: ghgemcutter@earthlink.net
*Eastern Mass Faceter's Group, rockpeddler@attbi.com
*Faceter's Forum Society-LaPorte, IN VESteele@aol.com
*Faceter's Guild of N. California, Wayne Meissner, lklomp@cnetech.com
*Faceter's Guild of S. California, Jerry W. Carroll, (818)348-6327
*Intermountain Faceter's Guild, Carl M. Unruh, (360)385-3753
*Midwest Faceter's Guild, E-mail: tgibbs@compuserve.com
*Mid-Williamette Faceters Guild, Albany, Oregon, Michael E. Bumcrot;
E-mail @ MBumcrot@valleyoilco.com
*Moreton Bay is a branch of the Australian Facetors' Guild, Brisbane,
Queensland. http://cwpp.slq.qld.gov.au/afg
*New Mexico Faceter's Guild, Nancy Attaway, attaway@highfiber.com
*North Puget Sound Faceting Guild, Keith Wyman, tfw@fidalgo.net
*Tacoma Faceting Guild, Chuck Bloch chuck_b@prodigy.net
*Texas Faceter's Guild, Jill Rowlands, gemsbyj@aol.com
*Seattle Faceting Club (LeonardBahr@prodigy.net)
*United States Faceting Guild (Keith Wyman, tfw@fidalgo.net)
*Vancouver Island Faceters' Guild - British Columbia, Canada.

(Add your faceting organization here, US or International - Write to
( owner-lapidary@caprock-spur.com or owner-faceters@caprock-spur.com )



A guy goes to a girl's house for the first time and she shows
him into the living room. She excuses herself to go fix them
a couple drinks. As he's standing there he notices a cute
little vase on the mantel.

He picks it up and as he's looking at it, she walks back in.
He says, "What's this?"

She says, "Oh, my father's ashes are in there."

He turns beat red and says, "Gee, oh...I'm sorry...I..."

She continues, "Yeah, he's too lazy to go to the kitchen to
get an ashtray."



Some people think it's holding on that makes you strong,
Sometimes it's letting go.
Letting go has never been easy,
But holding on can be as difficult;
Yet strength is measured not by holding on,
But by letting go."

--- Author Unknown ---


Facet polishing laps
Still have a couple of dozen Vargas Pol-A-Gem laps left. Only Cerium Oxide
in 6" size. There will be no more 8". Glenn really is not interested in
fiddling with his lathe to correct his maching problems at 8". He and his
protoge, Dick Rugel, will make more 6" if there is demand. There is nothing
faster,better or more durable than a Pol-A-Gem for quartz,sunstone, opal etc.
One lap should last a lifetime ....and they DO NOT SCRATCH. They also work
great on 8" machines. Lemme know your interest. Price delivered in US is
Jerry Newman Gemart Services gemartserv@aol.com


Subject: AD
Date: Thu, 31 Oct 2002 20:50:44 -0800
To: faceters@caprock-spur.com
From: "P. Miklik" <b-daw@pacbell.net>

Contact b-daw@pacbell.net

Honey, red & brown zircons, 10g parcels @$20/parcel

Red Garnet $8/g, eye clean-slightly included
Spessartine Garnet $7.50/g, slight-moderately included
Malaya Garnet $6/g, good eye clean roughs
Tunduri Garnet $10/g, eye clean-slightly included

Pink Tourmaline $20/g, eye clean-slightly included
Red Tourmaline $10/g, slight-moderately included
Bicolor Tourmaline $15/g, eye clean
Watermelon Tourmaline $20/g eye clean
Green/Green Blue Tourmaline $10/g, eye clean roughs

Blue, Green & Blue/Green Sapphires $35/g, eye clean-slightly
included, up to 1g.

Blue Beryl (Aquamarine) $6/g, eye clean-slightly included crystals
Green Beryl (Emerald) $10-$50/g, eye clean-slightly included crystals,
zoned green
Cabbing Grade Aquamarine $3/g


Must sell the following rough - no reasonable offer refused -

Rose Malaya Garnet - deep red, eye clean african material - 1 kg available -
$2.00/gram for quantities of 500 grams or more

Red Zircon - eye clean african material - 300g available - $2.00/gram if you
take the entire 300 grams

Spessartite Orange Garnet - slightly to moderately included African
material - Ranges from 1.5 - 3 cts size - $7.50 per gram if you take the
entire 300 grams

I have put pictures of the rough and stones cut from it on the web -
check it out at: http://www.wintershill.com/rough

You can email me (Richard) for more info or ?'s at: wntrhill@somtel.com

Rock Peddler
Complete online discount catalog for cabbing and faceting machines, wheels,
laps, polishes, diamond saws, diamond blades, and general lapidary supplies
at http://www.rockpeddler.com.


Gewelers Gems
e-mail: sales@jewelersgems.com
Solid copper laps 1/4 thick 8" and 6" you can charge both sides with
diamond. http://www.jewelersgems.com/faceting_laps.htm


RRGaetan GEM BROKERS < "Quality gem rough for discriminating gem-cutters."
We serve hand-select (and bulk/parcels, too!), affordable, quality gem rough
in a variety of materials. Our most recent arrivals: Aug. 2 ­ Aquamarine,
Spessartite and Tourmaline. For details and a colorful, interactive e-flyer
(PDF), email rrgaetan@san.rr.com and ask for "The Rough List."




For All National and International Masters, Past-Masters and
World-Class Cutters:

This post is simply a reminder that in 2003 the USFG will host its
first National and International Faceting Competition. It is called
the North American Faceting Challenge -- 'NAFC.' Since the designs
and rules were first published in the 2001 September Issue of the
USFG's Newsletter, and since they have not been published since 2001,
some of you, who are most capable - skill-wise, may not
know about the competition, and some of you may have forgotten. The
"NAFC" is an OPEN Competition. Please note: The designs and rules
can be downloaded at <http://www.usfacetersguild.org/events.shtml>.
The closing date is June 20th, 2003; the amount of time between the
present date and June 20th, 2003 should be enough for all Master
cutters to cut the two required designs -- Fred Van Sant's "Four
Star," and Charles Covill's "Wind Wheel No. 2." If further
information is needed, please contact me at <clmoon@pacbell.net>.

Charlie Moon




Just a reminder that the St. Lucie Rock & Gem Club will be hosting their 25th
annual show at the Ft. Pierce Civic Center (25th St. & Virginia Ave.), on
November 9th & 10th. Saturday 10-6, and Sunday 10 - 5.
I'll be demonstrating both days.
Norm Holbert
Port St. Lucie, FL


Canaveral Mineral & Gem Society is again presenting
our yearly gem show, the Parade of Gems, November 23rd and 24th at the
Melbourne auditorium, 625 E Hibiscus Blvd in Melbourne, FL, from 10AM to
6PM. Admission is $3, with kids under 12 admitted free.


Tomoka Gem and Mineral Society's annual show will be held on Dec. 14 and 15 at
the Volusia County Fairgrounds, located on state route 44 in Deland, Florida.
Fairgrounds are 1 mile east of interstate route 4 at exit 118. We will have at
least one showcase of faceted gems done by our members. Thank you, John Withey



Presented by the Faceter's Guild of Southern California
At the Seaside GEMboree AFMS/CFMS Convention & Show
Ventura, California June 6-7-8, 2003

You are invited to participate in the Faceters
Symposium 2003 which will be held at the Seaside Park
(Ventura Fairgrounds) at Ventura, California during the
AFMS/CFMS Convention & Show. The Faceters Symposium dates
are June 6th, 7th, & 8th. That is Friday, Saturday, &
Sunday. The CFMS GEMboree is on those dates as well as on
Thursday the 5th of June. All of this is at the same
location, just a hundred yards from the beach.

The Faceters Symposium will feature ten speakers, who
will have presentations covering various parts of gemstone
faceting interests. A Hospitality Hour on Friday evening
and a Saturday Awards Luncheon are also part of the
Symposium. There will be competitions at the Novice,
Advanced, & Masters levels. Get started on your
competition entry soon.

The CFMS GEMboree itself will have buildings that have
exhibits on display, dealers with their wares to offer,
demonstrators to show how it is done, and speakers with
presentations covering other lapidary fields of interest.

For information & costs regarding the Faceters
Symposium (including competition information), your contact
is listed below. Ask for one of the Packets. Be sure to
state your snail mailing address so that a Packet can be
mailed to you.

Glenn Klein, Chairman
24001 Muirlands Blvd., Space #79
Lake Forest, CA 92630 email: glennklein@yahoo.com


Hi Thurmond,
Many thanks for for continuing Hale's good work. If possible,
please list the following show sponsored by the Roanoke Valley
Mineral & Gem Society - 22nd Annual Show at the Salem Civic
Center, Salem, VA 11/29-12/1/02. Thanks,Larry White



KANSAS: If anyone in the central portion of the country from Oklahoma city
to Wichita to Kansas City would be interested in forming something like the
Flatland Facet Guild or some such name give me a line at
Larry W. Davis

ILLINOIS - MISSOURI (Central Area, hubed around St. Louis, Missouri) A
group of 4 faceters have met and we had a great time. We intend to meet
again and would like to have fellow faceters join our group. I received an
email from another Newbie that expressed interest in attending our next get
together. Faceters from any and all areas are welcome... It's swell to meet
personally and exchange tips and hints! COME JOIN OUR GROUP! It's FREE! ;o)
Doug Smith, Alton, IL .at: gembin@spiff.net

INDIANA: I moved to Valparaiso, (Northwest) Indiana, about three years ago.
Are there any clubs in this area? or is there anyone interested in starting
one? I do faceting and some cabbing. Not much here but cornfields. Nice
scenery, but I get sooooooo lonely. LOL Let me know. (Bill) "William
J.Pysnack" <wjpin@home.com>

S.E. LOUISIANA: Anyone in or around the New Orleans, LA area wishing to
form a club or have get togethers for faceting, discussions, cabbing,
procurement, etc. Please contact me via email @ tbird@bayouself.org. (Thom
Bird - Chalmette, LA)

MISSISSIPPI: If anyone is near Meridian Mississippi and would be interested
in forming some kind of club or just get together with faceting and/or
cabbing please e-mail me at jennings@netdoor.com Thanks, Jim

TEXAS: Anyone in the Corpus Christi or Coastal Bend area that is interested
in starting a local faceter's guild contact me at: hankswan@earthlink.net or
gemscc@msn.com or telephone 361-857-2405 (days) or 361-992-1296
(evenings).Hank swan

WASHINGTON DC.(Rockville Md area) Looking for folks to get together
occasionally to facet. I have just started faceting and am also interested
in sphere making (infinate # of facets) Robert Winfield

Lurking is fine, but participation is more fun!! Get involved!!


Thurmond Moore III/ Moderator

Fred Ward / Moderator - Gemology

Tempie Francis, Attorney at Law / Legal Advisor


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