Administered by Hale Sweeny (firstname.lastname@example.org)
This list digest contains the following message subjects:
1. LapDigest News for Issue No. 86 - Tue 11/25/97
2. NEW: Lapidary Materials from Canadian Rockhound
3. RE: Retensioning and Straightening Saw Blades
4. RE: Lapidary Glues and Cements
5. RE: Victoria stone (19-2)
6. FS: Archaen Butterstone
Subject: LapDigest News for Issue No. 86 - Tue 11/25/97
The Index.txt has been updated through Issue 85, and is in
There are several topics to be published in the next few
weeks, and these are:
.. adhesives (continuing)
.. doublets and triplets
.. how to do channel work (mineral inlay)
.. rebuilding old lapidary machines (revisited)
If any of you have questions for any of these, please send
them in; if you have contributions about them, by all means,
please send them in! But in the interim, continue to send
your general queries.
I would also like to do an issue or so on lapidary schools
which are affordable enough for all of us; I am thinking
specifically of Wm. Holland and Wildacres, but there may
be others that I don't know about. If you know of any ones
which run short (week long) classes in the summer and which
are affordable, please let me know about them.
I'm happy to tell you that the new scanner is up and running
and is a joy to work with!
Stay safe, enjoy life, laugh and hug those you love TODAY!
Subject: NEW: Lapidary Materials from Canadian Rockhound
The current issue of Canadian Rockhound, which you will find
at <http://pangea.usask.ca/~dfs846/rockhound/home.html>, has
several articles which describe some lapidary materials from
Canada. I would like to summarize some of these of special
First, Tim Jokela briefly describes collecting sites for
lapidary materials in the Bancroft area. Most important, for
me, is the Princess sodalite mine, just outside Bancroft. It
probably has the best sodalite in North America; you can
collect lower grade material for $1 per lb., or buy high
grade gem sodalite for $5 per lb.
Just across from the Princess mine is the Lily Robertson
claim, which has black star corundum.
Also, there is beautiful rose quartz ($2 per lb.) in the
pegmatites of Quadeville, about an hour from Bancroft, and
feldspar with "labradorescence".
Next, Ben Hyman writes about Spectralite Mountain in Marathon
Ontario. He says that this material rivals the best Finnish
spectrolite, and comes in a variety of colors, including a
gold, and an unusual green. The iridescent colors include
blue, gold, orange and green. You must mine the material
yourself, but he said it isn't hard. It holds together fairly
well, but he has had to use Opticon on a few pieces.
According to Sandra Downs, in her article entitled:
"Bancroft, Ontario: Canada's Mineral Capital", several
lapidary materials may be collected at the Beryl Pit in
nearby Quadeville, including amazonite, quartz, and
the feldspar stones peristerite, albite and labradorite.
I'm sure Canada has many more lapidary materials than these,
but these are the ones mentioned in the Fall 1997 issue of
the Canadian Rockhound. I highly recommend your reading the
articles in this issue of the Canadian Rockhound.
non-commercial republish permission granted
Subject: RE: Retensioning and Straightening Saw Blades
The easiest way to put the tension back in your blade is to
take it to any sawmill and have the mill hammer smith do it.
It cost me $5 and he did a great job.
Subject: RE: Lapidary Glues and Cements
Geoff asked about lapidary glues about a week ago. I would
like to submit that the glue he mentioned, which is "cured"
by UV, is "Crystal Clear" by Duro. Crystal Clear ultraviolet
glass adhesive is made by Duro, a division of Loctite
Corporation, of Cleveland, Oh. It comes in .07 fl.oz.
syringes, is known by product #CGA-1, or item no. 81190, and
I paid $2.19 each for the tubes I have here. It is what I
use exclusively for Opal triplets, as it is thin and
therefore "bubble-free", allows you to move it around before
it sets up, and is water clear and non yellowing.
Just last week, my wife broke a favorite glass candle holder,
and was upset. No problem, just pick up the larger pieces,
figure out a replacement order for the pieces, glue one at a
time, position, go outside and hold in the sunlight for
15-30 seconds, and it is cured! Works for me.
--non-commercial republish permission granted--
(Ed. Note: You may get a technical data sheet and an MSDS on
this product faxed to you by calling 1-800-LOCTITE (1-800-
562-8483) and PRESSING 2, and ask for these sheets for item
number 81190. Marshall is correct; in the book AMERICAN
LAPIDARY, Henry Hunt, one of the artists in the article
alluded to by Geoff, specifies that brand as one of the ones
he uses. Hale)
Subject: RE: Victoria stone (19-2)
I am curious if there is any secret to cutting Victoria
Stone. Before I destroy any, should I watch for any special
way to look at this stone.
(Ed. Note: Geri Arms <email@example.com> and I also have an
uncut collection of Victoria Stone slabs, with a sample of
every color they made. I have been trying to find information
about Dr. Iimori, who made this stone in Japan about 10-12
years ago, and about the initial development of this stone,
but to no avail.
I wrote George Maul asking about his of slabs, about
the equipment he had, and so on, and the following is his
Victoria stone, continued...
I have ten pieces of various colors .
I use 6" saws and I have 100 grit, 220 grit and 600 grit
diamond wheels I also have a wet belt sander for Lortone
equipment. I am down-sized retired and have been cutting
stones for 15 years. My teacher is no longer here to advise
me on new stones.
It does not look difficult, but no sense in wasting good
no commercial republish permission granted
(Ed. Note: George, I have talked to a number of people who
have cut a lot of Victoria stone, and was advised that it
needs a light hand. Do not push hard on it, and keep it cool;
the material is sort of fragile, glass-like, I gather. When
sawing, cut slowly. Maybe someone among our members has
further advice for you; I hope so! If so, I hope they will
share their experiences about this material with the list.
Subject: FS: Archaen Butterstone
Archaen Butterstone is a 2.5 billion year old rock known to
contain Micro fossil evidence of the first life on earth.
Take a look at:
The material carves, cabs and takes a polish very easily. It
is available in rough pieces of between 5 and 25 lbs at $1.69
per lb, and selected pieces of about half a lb with one
surface polished to show content, at $1.25 each.
Please contact me if you need any further information.
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