Issue No. 292 - Friday, July 09, 2004
Moderated by: Thurmond Moore III
Committed to carrying on the fine works of
Hale Sweeny and Jerry Dewbre
http://www.gemcutters.org or
Hi all,

You guessed it. I was out for a 4 day holiday last weekend
so no list was produced.


Index to Today's Digest

01  NEW: Spectrascope
02  RE: FIPP show in Teofilo Otoni Brazil
03  RE: FIPP show in Teofilo Otoni Brazil
04  NEW: 4th Annual Micromounters Winter Gathering
05  RE: Polishing CZ
06  NEW: Gem Conference 2004
07  NEW: June Rock Trip Report !
08  RE: Gem Treatments - Opticon / Oiling - Vacuum
09  NEW: Henderson County Micro-Mineral Symposium
10  NEW: Warning
11  NEW: facet pattern
12  RE: FIPP show in Teofilo Otoni Brazil


Subject: spectroscope ????
Date: Mon, 28 Jun 2004 23:49:36 -0400 (GMT-04:00)
To: lapidary@caprock-spur.com
From: Michael & Linda <lakeout@earthlink.net>

I have been toying with the idea of using a Web cam and attaching a
spectroscope to the end so I can take take a picture of the spectrum.
Has anybody on the list done anything like this? I am thinking of
building a box that is painted black inside and using it to focus on a
bright beam of the light shining through the gem/rough. I'll start in the
morning and see how it goes.


Subject: FIPP Show in August in Teofilo Otoni, MG, Brasil
Date: Tue, 29 Jun 2004 06:45:11 -0300
To: LapidaryArtsDigest <lapidary@caprock-spur.com>
From: Robert <robertplowejr@uol.com.br>

Subject: Gem and Mineral Show in Teofilo Otoni, Minas Gerais

28 June 2004

I posted this on another list recently.

The 14th annual Gem and Mineral show in Teofilo Otoni, Minas Gerais, Brasil  will be held August 17th to 21st. Everything Brazil produces in the way of
faceted and cabochon gem stones and gemstone rough plus opals and
mineral specimens. 320 exhibitors in a large tent show and in booths all
around the main town square.

Best regards,
Robert Lowe
Lowe Associates - Brasil
Gemstones, Rough, Specimens
Tucson - February 2 - 7, 2005 - GJX # 205
e-fax: 1-240-757-6022
e-mail: USA    < robertplowejr@juno.com >
e-mail: Brasil < robertplowejr@uol.com.br >


You are invited to visit the largest commecial
Gemstone show in the Southern Cone of the Americas

FIPP 2004
The Fair at the Source


August 17 to 21 - 2004
320 Exhibitors

"The Fair at the Source"
The only fair held at the producing source, in the largest gemological
province on the planet Quality, variety and quantity
The world's largest gemological province in quality, variety and
quantity of occurrences Colored Stones Aquamarines, Alexandrites,
Amethyst, Citrine, Chrysoberyl, Emerald, Kunzite, Topazes (Imperial
and blue), Tourmaline, Rubelite etc.
Art and Style in Gems Cut, rough, calibrated, free form, specimens
for collectors, jewels, mineral art, gem art, bijouterie, exotic minerals,
lapidary machinery  and equipment
Fone: 55-33-3522-1762    Fax: 55-33-3522-1662
www.geabrasil.com <http://www.geabrasil.com/>         geabr@uai.com.br


Subject: Re: Issue No. 291 - Monday, June 28, 2004
Date: Wed, 30 Jun 2004 11:26:36 -0300
To: LapidaryArtsDigest <lapidary@caprock-spur.com>
From: David Stanley Epstein <davids@cdlto.com.br>

     Dear Tiffany,
            There are 2 fairs here. The 1st which is run by the brokers
organization is 14-18 July. Here one finds more of the less expensive
items. The other Aug. 17-21 is run by the exporters association and is
more upscale. You'll find some goods of all types at both fairs. There
will be plenty of recuts available and although they don't like to
export small quantities of rough, there will be some rough to choose
from while you are here.
    If some of the Lapidary Arts group want me to make Hotel/Car
reservations or give advise on travel or money exchange I will try to
help.  If someone wants me to help them locate goods/ translate/test
stones etc. and I'm not too busy with other clients I'll try to be of
assistence also.
       David Epstein


Subject: 4th Annual Micromounters Winter Gathering
Date: Thu, 1 Jul 2004 09:16:47 -0700
To: "LapidaryArtsDigest" <lapidary@caprock-spur.com>
From: "Earl" <earlrock@earthlink.net>

Announcing the 4th Winter Gathering of Micromounters. Feb. 2005 in
Dowling Park, FL (USA)

Details at:

Plan early to attend, as space is limited. It has been a fun event for
the past 3 years.

regards to all,


Subject: RE Polishing CZ
Date: Fri, 2 Jul 2004 09:17:06 +1000 (E. Australia Standard Time)
To: <lapidary@caprock-spur.com>
From: "Russ And Nat" <russandnat@optusnet.com.au>

Another thought on polishing CZ's, I use a method told to me by a friend of
a friend, basically you take a tin or 60/40 tin/lead lap, dip a bunched up
tissue (or 2) into olive oil, then use this to clean the surface of the lap,
you will see it go from a blackish tinge to a more silvery look.  You may
need a little elbow grease but keep going until the lap is nice and "silvery"
  Next take more tissue (I use Toilet paper) and wipe the olive oil off the
lap, again you may need a little force.  The lap surface will dull a little
but that is OK.  You will need to experiment a little but keep going until
almost all of the oil is gone.  Now take your diamond powder (I use 50 000)
and apply tiny amounts evenly around the lap.  I use a small piece of
insulation tape on my finger as I have a plentiful supply ( I am an
electrician ;)  but I have used a finger cut out of a rubber glove, rub the
surface of the lap to make it "wet" from the oil, then put your finger on
top of the diamond powder container, turn it upside down then right way up
to deposit the powder onto the glove/tape, then simply rub it into the lap
as evenly as possible.  I dont like making direct contact with the diamond
powder as I dont imagine it is very good for your health.
You dont need a lot of powder, but you will need to experiment a little.
You will also find the lap will feel "scratchy" when polishing compared to
other wet methods.

Dont use any water or lubricant's when using this method.
If you leave too much oil on the lap, the diamond powder will tend to stick
to the stone as you polish, requiring recharging of the lap sooner.
I find I can polish around 6 stones using this method before requiring
recharging, though this depends on the size and type obviously.
Be careful as this method will overcut small facets surprisingly easily, you
generally only need one pass over to polish most facets, and if your machine
is a little inaccurate, be careful when you need to "cheat" facets, as it
will cut extra sides on your facets quickly, even on CZ and Corundum.

Hope this helps.  I use this method pretty well exclusively and rarely have
any problems polishing.

Also if your laps are nearly new they may need a little "running in", I have found
the pre-charged Chinese laps can be quite savage initially but ironically cutting a
few CZ's on them for starters settles them down nicely.


Subject: Gem Conference 2004
Date: Fri, 2 Jul 2004 12:58:21 -0700
To: lapidary@caprock-spur.com
From: Tony <lightbender@thegemdoctor.com>

Hello Gem fans,

Vancouver B.C. is hosting the 15 th Annual Canadian Gemmological
Association  Gem Conference 2004 - Seasons Over Time
(Historical Memories, Unearthing Our Era, Passage to the Future)
October 22nd, 23rd & 24th 2004 Sponsored by the Canadian
Gemmological Association,  Vancouver Community College, G.I.A.
Alumni Vancouver Chapter,  and the Canadian Gemmological




Subject: June Rock Trip Report !
Date: Sun, 4 Jul 2004 18:56:16 -0500
To: "'LapidaryArtsDigest'" <lapidary@caprock-spur.com>
From: "Carl Mauritz" <gemhunter@frontiernet.net>

Hello every one,

Last month I was down in North Carolina on a rock collecting trip. Here is
the report about my trip. I all so attended the Mcrocks get together that I
helped in setting up. But My good friends the Brantley's did most of the

Here is the url: http://www.huntforgems.com/spring_trip_2004.htm

Warm Regards
Carl Mauritz


From: "Tony" <lightbender@thegemdoctor.com>
To: <owner-lapidary@caprock-spur.com>
Sent: Friday, July 02, 2004 1:31 AM
Subject: Gem Treatments - Opticon / Oiling - Vacuum

Hello Steve,

I have used several types of vacuum pumps over the years and have
experienced no real success with any other than relatively new
vacuum casting pumps and really nice results with an optical
diffusion vacuum chamber but this unit was worth a silly amount
of money. I have also tried pressure treating with pumps in the
thousands of psi with very good results. The pump in the food
protector is worse than useless for gem treatment, nothing
really happens below 26-7 inches, you really need to get more
than 28 inches for the stone to start bubbling. I doubt the food
pump would pull 10.

Depending on the material I have discovered a superior method of
oiling and opticon treatment that has given me excellent results
that has generally exceeded the vacuum or pressure method
results. I use an ultrasonic cleaner. The stone is immersed in
the oil or opticon in a small glass container which is suspended
in the ultrasonic tank filled with water. My ultrasonic gets
quite warm after being run for a while so I let it cool down but
I can get most stones done with a couple of 15 minute sessions l
have had a few that took longer. The stone will bubble away for
quite a long time if you have a particularly nasty emerald. I
have been doing this with success for many years and have never
had a a stone come apart on me. I have however pulled many side
stone diamonds out of their settings.



Subject: Henderson County Micro-Mineral Symposium
Date: Thu, 8 Jul 2004 10:14:43 -0400
To: "LapidaryArtsDigest" <lapidary@caprock-spur.com>
From: "Earl" <earlrock@earthlink.net>

It is getting close to Labor Day, and the annual Henderson County Gem &
Mineral Society Micro Mineral Symposium, held in conjunction with the
Gem and Mineral Spectacular and the Apple Festival.

The Micromounters will meet on Sept. 4th starting around 9:00 A.M. in
the Salvation Army building between 3rd & 4th on Grove St. in
Hendersonville, NC, USA. Plan to attend, bring your 'scope, trading
material, and give-aways. The "freebie" tables are usually loaded with
some pretty good material. I believe that a light lunch and snacks will
be available for a nominal fee.

The Gem and Mineral show starts on Friday Sept 4th, as does the Apple



Subject: Fwd: [The Rockhounds List] Prevention on MINERALHOLICS
Date: Thu, 08 Jul 2004 09:06:41 -0400
To: lapidary@caprock-spur.com
From: Jim Small <jsmall47@earthlink.net>

         After some soul searching, I decided that this was worth passing
along to you. If you feel likewise, then please add it to the next issue.


Jim Small
Small Wonders Lapidary

>We are rockhounds from Patagonia , Argentina, and personally choose
>the agates we offer to the Market.
>Our system is to send the agates chosen by the purchaser , and after
>receiving them , the payment is received.We use this system for
>Austria , Australia , Germany , Japan , Switzerland and Canada and
>never had trouble.
>We had our first failure using this system with a "Company" named
>MINERALHOLICS. On the 16th of june , they received several agates
>from us (28 to be accurate), but they failed to pay or to respond to
>our e-mails.
>Not only they didn't pay , but they placed some of OUR agates in
>their webpage : www.mineralholics.com/page7.html
>Condor , Crater and some new findings we made during our trips , are
>now exposed , for them at 0 cost.
>They sign as PAUL & Nadine CLARK.
>1009 Radka
>Address : BEAUMONT Ca. 92223 USA
>So please , beware with these fellows. They will deceive you and you
>will loose your money and minerals.
>Best Regards
>Ricardo M. Birnie

The above was originally posted to the Bob Kellers Rockhound List.


Subject: facet pattern
Date: Thu, 08 Jul 2004 16:28:37 -0400
To: lapidary@caprock-spur.com
From: "Frank lavin" <nival42@hotmail.com>

I am recutting a tourmaline that has a closed end.  The owner wants it to
sparkle.  I was thinking of a portugese pattern for the pavillion, but
cannot find a pattern anywhere.  Can anyone help me out on this?   Thanks.



Subject: FIPP gem fair in Teofilo Otoni
Date: Wed, 07 Jul 2004 15:52:59 -0300
To: LapidaryArtsDigest <lapidary@caprock-spur.com>
From: Robert <robertplowejr@uol.com.br>

07 July 2004

>I am planning on taking a vacation trip to Brazil and was thinking about
>going there when the FIPP gem fair is happening this August so see if I
can stop by the fair to buy some rough. I have never been there. Can you
>please tell me if you know what the FIPP show in Teofilo Otoni has to
>offer for gem cutters?

Concurrently with the FIPP gem Fair, which will be held in a large tent, set
up in the middle of the town square, there will also be a repetition of the
street fair. The street fair is being held in the town square in July from the
14th through the 17th. And then it will be held again during the FIPP gem
Fair. The booths in the street fair are much more inexpensive so there will
be many of the prospectors, small mine owners and gem rough and mineral
specimen dealers set up in them. The booths in the FIPP tent will be mostly
occupied by the larger gem stone producing houses from Teofilo Otoni,
Governador Valadares and even Belo Horizonte. In the tent, the emphasis
will be on faceted and cabochon gems and related products, as well as the
Brazilian faceting machines and a representative of the irradiation laboratory, etc.

Also during the fairs, the "corretores" will be out in full force walking around
and showing parcels of just about anything and everything to any one who
desires to look; anywhere, in the park, in a door way, in your hotel lobby, at
a table in a restaurant, etc. The "corretores" are intermediaries or informal
brokers for stone houses and stone producers, miners, etc. They sell out of
their briefcases, pouches, gymbags etc. There are literally hundreds of them
in Teofilo Otoni.

Those of us who come from out of town usually give our merchandise to the
"corretores" to sell for us and pay them a commission on the sale. Last year
we gave them our Brazilian Opals to sell and then we bought a parcel of Faceted
Tourmaline and also a parcel of Tourmaline cat's eyes with the results of the sale.

If you don't see what you want at the street fair or in the FIPP gem Fair, you just
tell one or more of the "corretores" what you are looking for and they will run it
down for you or invite you to go to one of their friend's or associates booths or
offices to see the requested material.

One year at the fair we told several "corretores" that we wanted large andalusite
rough and red Imperial Topaz rough, and that we were not going to buy anything
else until we got those orders filled first. A day or two later we had the andalusite
rough and the red Imperial Topaz rough and also some large Indicolite rough. We
had also seen a 6 kilo piece of aquamarine rough, Brazilianite on matrix specimens,
and a bunch of tourmaline on matrix specimens. There was also a several hundred
kilo smokey quartz on the back of a pick up truck.

If you are buying for hobby cutting - you will probably do okay negotiating with the
people's offers. Remember that cutting costs in Brasil are so low that the gem rough
will be offered to you at approximately the same price as a cut stone (they calculate
the approximate yield for the piece of rough and the price for which they think that
they could sell the cut stone and price the piece of rough accordingly). You will
probably have more success in negotiating for rough outside of the tent in the street booths.

If you are wanting to buy gem rough to resell - you will have to buy larger quantities
in order to be able to force the prices to come down as a function of the larger amount
of money involved.

The security in Teofilo Otoni during the Gem Fair is intense. There will be uniformed
heavily armed Swat teams all around the square. You will have to be identified to enter
the FIPP tent and usually in the first days they will scan you with metal detectors and
may look in purses, etc.

In the evenings, after the tent show is closed for the night, there will be
live music and dancing in parts of the square.

We will be going to the August show, so if you need an interpreter or help in negotiating
prices let us know.

Best regards,

Robert Lowe
Lowe Associates - Brasil
Gemstones, Rough, Specimens
Tucson - February 2 - 7, 2005 - GJX # 205
e-fax: 1-240-757-6022
e-mail: USA    < robertplowejr@juno.com >
e-mail: Brasil < robertplowejr@uol.com.br >









PERSONALS (General Lapidary and Faceting)


Lurking is fine, but participation is better for learning !
Post something from your experiences in gemcutting today!

Light Bulbs

Q: How many Windows programmers does it take to change a light bulb?
A: Four hundred and seventy-two: One to write WinGetLightBulbHandle,
one to write WinQueryStatusLightBulb, one to write WinGetLightSwitchHandle...

Q: How many technical support personnel does it take to change a light bulb?
A: We have an exact copy of the light bulb here, and it seems to be working
fine. Can you tell me what kind of system you have? OK. Now, exactly how
dark is it? OK. There could be four or five things wrong ... Have you tried the
light switch?

Q: How many managers does it take to change a light bulb?
A: We've formed a task-force to study the problem of why light bulbs burn out,
and to figure out what, exactly, we as supervisors can do to make the bulbs
work smarter, not harder.

Q: How many beta testers does it take to change a light bulb?
A: We just noticed the room was dark; we don't actually fix the problem.

Q: How many Microsoft technicians does it take to change a light bulb?
A: Three. Two to hold the ladder and one to screw the bulb into the faucet.

Q: How many MIS guys does it take to change a light bulb?
A: MIS has received your request concerning your hardware problem and
has assigned you request service number 39,712. Please use this number for
any future reference to this light bulb issue.

Q: How many object-oriented programmers does it take to change a light bulb?
A: You're still thinking procedurally. A properly designed light bulb object would
inherit a change method from a generic bulb class, so all you'd have to do is send
a light-bulb-change message.

Q: How many developers does it take to change a light bulb?
A: The light bulb works fine in my office ...

Q: How many shipping department guys does it take to change a light bulb?
A: We can change the light bulb in seven to ten working days, but if you call before
2 p.m., and pay an extra $15, we can get the light bulb changed overnight.

Q: How many Microsoft engineers does it take to change a light bulb?
A: None. Bill Gates will just redefine Darkness(TM) as the new industry standard.

Q: How many service technicians does it take to change a light bulb?
A: Just one, and he does it very well, but there is that $85.00 non-refundable on-site
service fee to consider . . .

Q: How many quality assurance techs does it take to change a light bulb?
A: Two, and you'll need a 48 hour burn-in, two hours of cool down, and a very thorough
bench analysis of the new bulb so don't expect to see either bulb for a week or so.

Q: How many receptionists does it take to change a light bulb?
A: Zero, well actually one, the one who tells the office manager about the light bulb
problem in the first place.

Q: How many software engineers does it take to change a light bulb?
A: None. It's a hardware problem.


It is not the critic who counts,
nor the man who points out how the strong man stumbled,
or where the doer of deeds could have done them better.
The credit belongs to the man who is actually in the arena,
whose face is marred by dust and sweat and blood;
who strives valiantly;
who errs and comes short again and again;
who knows great enthusiasms, great devotions;
who spends himself in a worthy cause;
who, at the best, knows in the end the triumph of high achievement,
and who, at the worst, if he fails, at least fails while daring greatly,
so that his place shall never be with those timid souls
who know neither victory nor defeat.

---Theodore Roosevelt---


is produced by Thurmond Moore III

Tempie Francis, Attorney at Law / Legal Advisor


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