LAPIDARY ARTS and FACETERS DIGEST
committed to carrying on the fine works started
by Hale Sweeny and Jerry Dewbre
Issue No.6 - Tuesday November 12, 2002
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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
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
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These changes do not have any effect on list distribution or
Index to Today's Digest
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
08 princess cut?
09 Recutting Badly Cut Stones
Business Section -
Subject: diamond heat sinks
Date: Fri, 08 Nov 2002 12:49:00 -0800
From: "P. Miklik" <email@example.com>
hello group and thurmond,
thurmond, your background in electronics has sparked an interest
i, too, love electronics and can whip up a computer from scratch,
problem. recently, my am faceting instructor passed on a book
about gemmology (an english version, hence the double "m").
reading the section on synthetics and it was describing these
yellow diamonds which were used as heat sinks for some type of
electronics. the book failed to mention whay type of electronics
these, large interesting diamonds and i was wondering if you knew
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
with a large diamond heat sink!!! fat chance, i know, but out
curiosity maybe someone knows?
take care all,
ps...i am enrolling into san diego gem & minerals gemology
course and we
are starting our first class this saturday! i am excited!
I have never heard of such a device. There are diamond composite
for some semiconductor devices. Our research areas were doing
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
From: "Keith Torckler" <firstname.lastname@example.org>
If the list members are able to get into the archives of the
jewellery list "orchid'they will find considerable discussion
oils. I had some input which created some argument, however I
stand by my
suggestions having used them along with other hard stone cutters
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,
does the job well, no mess and unlike oil doesn't get into and
and flaws in the jade.
Incidently I see one correspondent suggests most opal is the
as quartz. I presume he must be talking about opal from a particular
as the opal I am familiar with from Australia is around 5.5 as
the 7 of quartz, given that it is an accelerating scale, this
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
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
From: John McLaughlin <email@example.com>
> 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
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
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.
Subject: Re: Issue No.5 - Friday November 8, 2002
Date: Sat, 9 Nov 2002 01:30:12 EST
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
you don't mean a sintered blade, which has a notched rim, or a
I think the NU-TEK brand of blades, with smart cut technology,
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
From: Tony <firstname.lastname@example.org>
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?
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
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
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
Subject: Those Damn Clams
Date: Mon, 11 Nov 2002 10:05:27 -0700
From: "Larry McCoy" <email@example.com>
Hi gang, in response to the question re opal clams. Ok opal often
things that have left their outline in the ground, they can be
shapes. The downside to clams is that they are often filled with
comes up in the opal when cutting. Get a good strong light and
clam to find the sand (if any), the sand tends to be somewhere
For orienting the color in opal. I start out by skining or nicking
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
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
usually much brighter than the others, if you use a bright light
colors will try to come up and it can be hard to see which is
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
From: "Michael and Linda Lauer" <firstname.lastname@example.org>
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
From: "Galarneau's" <email@example.com>
I have been recutting badly cut stones for the last 20 years.
experience has shown me that unless you are a very experienced
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
is judging the stone as to whether it is a cutter or not. This
learn yourself and after you buy a few hundred stones that do
out financially you will either learn that you have bought the
stones or quit recutting.
Second is dopping the stone. Most important is dopping as close
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
the correct dopping.
Third is a total understanding of the way that light reflects
refracts in each and every gemstone material. This understanding
allow you determine which facets you want to change, where you
add facets, and what effect you expect to see when you have the
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
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
you that think you have mastered the challenge I suggest you by
carat parcel of Bangkok Beauties. Weigh each stone, keep track
time. and recut each stone. In the end if you have turned out
finished stone that can command a premium for your time you are
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
to machine a stone in a very short time. It takes a lapidary to
recutting and repair.
RESOURCES FOR LAPIDARIES ~
Hale Sweeny's Lapidary Digest Archives http://www.lapidarydigest.com/
ILA Lapidary Arts Digest Online http://facetersdigest.org/toady.htm
RESOURCES FOR FACETER'S ~
Fac-Ette Manufacturing Company: (910)256-9248
Raytech Industries: http://www.raytech-ind.com
Rock Peddler: 1-800-416-4348 / www.rockpeddler.com
RESOURCES FOR GEMOLOGISTS ~
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, firstname.lastname@example.org.
*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
Don Cameron: email@example.com
*Eastern Mass Faceter's Group, firstname.lastname@example.org
*Faceter's Forum Society-LaPorte, IN VESteele@aol.com
*Faceter's Guild of N. California, Wayne Meissner, email@example.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: firstname.lastname@example.org
*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,
*New Mexico Faceter's Guild, Nancy Attaway, email@example.com
*North Puget Sound Faceting Guild, Keith Wyman, firstname.lastname@example.org
*Tacoma Faceting Guild, Chuck Bloch email@example.com
*Texas Faceter's Guild, Jill Rowlands, firstname.lastname@example.org
*Seattle Faceting Club (LeonardBahr@prodigy.net)
*United States Faceting Guild (Keith Wyman, email@example.com)
*Vancouver Island Faceters' Guild - British Columbia, Canada.
(Add your faceting organization here, US or International - Write
( firstname.lastname@example.org or email@example.com
TODAY'S FUNNY ~
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
get an ashtray."
REFLECTIONS AND TIDBITS:
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 ---
BUSINESS SECTION: No Business Today
Facet polishing laps
Still have a couple of dozen Vargas Pol-A-Gem laps left. Only
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,
One lap should last a lifetime ....and they DO NOT SCRATCH. They
great on 8" machines. Lemme know your interest. Price delivered
in US is
Jerry Newman Gemart Services firstname.lastname@example.org
Date: Thu, 31 Oct 2002 20:50:44 -0800
From: "P. Miklik" <email@example.com>
AVAILABLE FOR SALE
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,
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
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
entire 300 grams
I have put pictures of the rough and stones cut from it on the
check it out at: http://www.wintershill.com/rough
You can email me (Richard) for more info or ?'s at: firstname.lastname@example.org
Complete online discount catalog for cabbing and faceting machines,
laps, polishes, diamond saws, diamond blades, and general lapidary
Solid copper laps 1/4 thick 8" and 6" you can charge
both sides with
RRGaetan GEM BROKERS < "Quality gem rough for discriminating
We serve hand-select (and bulk/parcels, too!), affordable, quality
in a variety of materials. Our most recent arrivals: Aug. 2
Spessartite and Tourmaline. For details and a colorful, interactive
(PDF), email email@example.com and ask for "The Rough List."
For All National and International Masters, Past-Masters and
This post is simply a reminder that in 2003 the USFG will host
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
USFG's Newsletter, and since they have not been published since
some of you, who are most capable - skill-wise, may not
know about the competition, and some of you may have forgotten.
"NAFC" is an OPEN Competition. Please note: The designs
can be downloaded at <http://www.usfacetersguild.org/events.shtml>.
The closing date is June 20th, 2003; the amount of time between
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."
information is needed, please contact me at <firstname.lastname@example.org>.
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
November 9th & 10th. Saturday 10-6, and Sunday 10 - 5.
I'll be demonstrating both days.
Port St. Lucie, FL
Canaveral Mineral & Gem Society is again presenting
our yearly gem show, the Parade of Gems, November 23rd and 24th
Melbourne auditorium, 625 E Hibiscus Blvd in Melbourne, FL, from
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,
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
FACETERS SYMPOSIUM 2003
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: email@example.com
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
LAPIDARY ARTS and FACETERS DIGEST PERSONALS:
KANSAS: If anyone in the central portion of the country from Oklahoma
to Wichita to Kansas City would be interested in forming something
Flatland Facet Guild or some such name give me a line at
Larry W. Davis
ILLINOIS - MISSOURI (Central Area, hubed around St. Louis, Missouri)
group of 4 faceters have met and we had a great time. We intend
again and would like to have fellow faceters join our group. I
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
Doug Smith, Alton, IL .at: firstname.lastname@example.org
INDIANA: I moved to Valparaiso, (Northwest) Indiana, about three
Are there any clubs in this area? or is there anyone interested
one? I do faceting and some cabbing. Not much here but cornfields.
scenery, but I get sooooooo lonely. LOL Let me know. (Bill) "William
S.E. LOUISIANA: Anyone in or around the New Orleans, LA area
form a club or have get togethers for faceting, discussions, cabbing,
procurement, etc. Please contact me via email @ email@example.com.
Bird - Chalmette, LA)
MISSISSIPPI: If anyone is near Meridian Mississippi and would
in forming some kind of club or just get together with faceting
cabbing please e-mail me at firstname.lastname@example.org Thanks, Jim
TEXAS: Anyone in the Corpus Christi or Coastal Bend area that
in starting a local faceter's guild contact me at: email@example.com
firstname.lastname@example.org or telephone 361-857-2405 (days) or 361-992-1296
WASHINGTON DC.(Rockville Md area) Looking for folks to get together
occasionally to facet. I have just started faceting and am also
in sphere making (infinate # of facets) Robert Winfield
Lurking is fine, but participation is more fun!! Get involved!!
LAPIDARY ARTS and FACETERS DIGEST Staff ~
Thurmond Moore III/ Moderator
Fred Ward / Moderator - Gemology
Tempie Francis, Attorney at Law / Legal Advisor
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