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LAPIDARY ARTS and FACETERS DIGEST
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Issue No. 383 - Friday, August 4, 2006
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Owned and 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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If you would like to donate to this work
there is a link at the bottom of the digest.

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Greetings everyone,

There have been severe lightning storms and
power outages for the last 3 fridays that prevented
publication of the list( alas no rain though).
Here is this weeks list finally.

Thurmond

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Index to Today's Digest

01  RE: Quartz Cab frosting
02  RE: Orenting Iolite
03  RE: Star Stone Orientation
04  RE: Orienting Iolite
05  RE: trip to Quartzite
06  RE: andasine
07  RE: Dougs Link dead?

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POST TO THIS LINK:
lapidary@caprock-spur.com
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_____________________________________________
Message:01

From: "John LeBourgeois" <john_ns@121email.com>
Subject: RE: Issue No. 382 - Friday, July 7, 2006
Date: Fri, 7 Jul 2006 10:24:53 -0700

>Message:02

>From: "Jim Smorto" <lilwolf@cfl.rr.com>
>Subject: RE: Quartz Cab frosting
>Date: Fri, 30 Jun 2006 16:59:12 -0400

>Thought I would share one item that may help.  Micro Mark
(www.micromark.com), sells a mini sandblast gun that     >includes aluminum
oxide "sand" for about $40.00.  It is >the size of an airbrush gun and uses
canned propellant.   >This may be a better alternative to large sandblasters
if your trying to frost small cabs.

I've used that item for removing (or trying to) clay from black opals.  The
problem with the gun is that it can only operate at about 35 psi. Anything
more than that and the shut off valve doesn't work.  I tried buying a dental
unit and that didn't work. The only thing I found for microsandblasting that
did work was the one from hunter products microjet. www.hunterproducts.com .
Two important things on using these, otherwise your in clog hell.  You MUST
have a water trap/dessicator between the compressor and your sand reservoir.
Lots of interesting physics about dew point and compression, but the bottom
line is that your air is very wet. 2nd you must heat and dry your sand
(store in sealed glass jar after w/ silica gel packets) after you do it.
Microwave at high for 10 min works great. Otherwise the sand will just clog
up that spray line and you'll have to take it apart and clean it out, (15
min per clog).

You can get really great transfer stencils that will allow you to put your
art work on an inkjet transparency, expose it to the sun or a high intensity
circuit board light for 10 min, stick it on your piece and wash away the
"black" areas.  Then sandblast a leisure and put your design right in.  The
stencil will resolve a .001" line!

Btw you'll need a sand trap for this.  Don't bother with the $400 desktop
units, just go to harbor freight and order one of the big boys for $100. or
so.. You'll be a lot happier..

-John
 

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Message:02

>
>From: raylahti@comcast.net
>Subject: Orienting Iolite
>Date: Fri, 30 Jun 2006 22:08:54 +0000

>Hi All,

>I told a friend about a piece of iolite rough I had just ordered.  He said
I have to  be very careful to orient   >the stone when I facet it so it
retains its color at all  angles of viewing.  Does anyone have experience
with    >this phenomenon and suggestions  to get the most color from the
stone?  Your help is appreciated.
>
>Ray

Ray, ioliote has one really good angle and one really transparent one. Most
of the junk rough is a nice fat slab with the table the clear axis, and the
color in a 1 mm thick axis. Assuming you got a "good one" which has good
color and thickness on the color axis, you need to insure that you have the
color area in the culet/pavilion.  That will colorize the entire stone.

-John

_____________________________________________
Message:03

From: "Carl Mauritz" <gemhunter@frontiernet.net>
Subject: RE: Issue No. 382 - Friday, July 7, 2006
Date: Fri, 7 Jul 2006 13:03:18 -0500

Hi Dave,

Yes you would use the same way to find the star in Rose Quartz as you would
in the Star Corundum and Star Garnets.

Warm Regards
Carl from WI
XS3 #10
http://www.huntforgems.com 
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From: "David Timpany" <timpany@earthlink.net>
Subject: Star Rose Quartz
Date: Fri, 30 Jun 2006 16:45:47 -0400

I've only had experience with corrundum in making star cabs.  Have just got
back from

the Hogg Mine in Georgia where their massive rose quartz is reportedly star
quality. 

How would I orient this material.  Would it be similar to your most recent
digest

post using garnet?  This material is stunning with no checks or fractures.
Very

large cabs are possible; but if they starred it would only add to their
quality.


David Timpany
timpany@earthlink.net

_____________________________________________
Message:04

From: "Carl Mauritz" <gemhunter@frontiernet.net>
Subject: RE: Issue No. 382 - Friday, July 7, 2006
Date: Fri, 7 Jul 2006 13:08:03 -0500

Hi Ray,

You would orient it so the best color of Iolite will be in the pavilion end
of the gem stone. I got Amethyst sometimes that the color is only in one
spot and this is what I do. I hope this helps you out.

Warm Regards
Carl from WI
XS3 #10
http://www.huntforgems.com 

-----Original Message-----
From: raylahti@comcast.net
Subject: Orienting Iolite
Date: Fri, 30 Jun 2006 22:08:54 +0000

Hi All,

I told a friend about a piece of iolite rough I had just ordered.  He said I
have to be very careful to orient the stone when I facet it so it retains
its color at all angles of viewing.  Does anyone have experience with this
phenomenon and suggestions to get the most color from the stone?  Your help
is appreciated.

Ray

_____________________________________________
Message:05

From: Al Balmer <albalmer@att.net>
Subject: Re: Issue No. 382 - Friday, July 7, 2006
Date: Fri, 07 Jul 2006 11:13:47 -0700

On Fri, 7 Jul 2006 11:45:04 -0500, "Lapidary Arts and Faceters Digest"
<lapidary@caprock-spur.com> wrote:

>From: THEGEODMAN@aol.com
>Subject: Re: Darlene Reger Bio:
>Date: Sat, 1 Jul 2006 04:42:07 EDT
>
>To Darlene Reger:
>
>The best way to visit Quartzsite AZ is by RV. There are only a few motels in
>Quartzsite and they are quite expensive so I recommend making reservations in
>Blythe, CA which is less than 25 miles west and drive it each day. You will
>want to go while the QIA POW-WOW is on since it is the best rock show.
There are four main shows so you would want to spend at least a day on each one so you
>would have to drive from Blythe to Quartzsite at least four days. Go to
><quartzsiteaz.com> for schedules and dates.
>
If you do go by RV, you should know that Quartzsite is surrounded by
BLM land, where you can camp up to two weeks for free, and a long-term
BLM campground which is very cheap. There are water and dump
facilities available.

>Hope this helps,
>Ernie Ogren
>The Geode Man
>Torrance CA

--
Al Balmer
Sun City, AZ
_____________________________________________
Message:06

From: "Ron" <faceter01@hotmail.com>
Subject: andasine
Date: Fri, 7 Jul 2006 17:55:00 -0400

Message:08

From: "Frank lavin" <nival42@hotmail.com>
Subject: andasine
Date: Thu, 06 Jul 2006 11:10:58 -0400

I have some light green andasine which I am told is a new discovery. Does
anyone have any info on this material?  It was on display at Tucson where my
friend picked it up.

    Hi Frank,
    If you go to the following site, there's all the info you could want
on Andasine. It will be the second article. This is the web-site of the
Gemstone Forecaster,                 which, if you subscribe to it, is a
VERY informative e-magazine about gemstones which comes out 4 times a
year. You can also get a hardcopy for a fee.
  
    http://www.preciousgemstones.com/Forecasters.html

- Ron

_____________________________________________
Message:07

From: Raynancyj@aol.com
Subject: Re: Issue No. 382 - Friday, July 7, 2006
Date: Mon, 17 Jul 2006 10:37:19 EDT

In a message dated 7/7/2006 12:46:12 P.M. Eastern Standard Time, 
lapidary@caprock-spur.com writes
   I need to learn more about identification, and was glad to see  the post
by Doug Smith. But when I tried to connect the site was no longer  available. 
I then tried to connect to just the main part of the  addy...found it, but the
info about gem identification was not listed.
  If anyone knows any other good source of information on this, I  would be
glad to get it. 
    Thanks Nancy


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