Mindat Mineralogy Messageboard - Lapidary and Faceting All aspects of working with minerals and stones, for example faceting, lapidary and flint/obsidian knapping. http://www.mindat.org/msgboard-57.html Wed, 19 Jun 2013 07:27:59 +0000 Phorum 5.2.15a http://www.mindat.org/forum.php?read,57,158361,296759#msg-296759 Re: Jade polishing http://www.mindat.org/forum.php?read,57,158361,296759#msg-296759
I've only done two BC jade cabs, they were nice but orange-peeled on me.

Diamond on wooden wheels is said to do the trick. Have a friendly local woodturner turn you some discs, impregnate them with 50k and 100k diamond and experiment. Have yet to get around to trying this myself, alas.]]> Tim Jokela Jr Lapidary and Faceting Mon, 17 Jun 2013 20:12:06 +0000 http://www.mindat.org/forum.php?read,57,158361,296360#msg-296360 Re: Jade polishing http://www.mindat.org/forum.php?read,57,158361,296360#msg-296360 Shirley]]> Shirley Lapidary and Faceting Thu, 13 Jun 2013 16:57:31 +0000 http://www.mindat.org/forum.php?read,57,180892,291524#msg-291524 Re: Stichtite - Treating to Prevent Crumbling, or Stabilizing http://www.mindat.org/forum.php?read,57,180892,291524#msg-291524 what about mixing epoxy and HF???
need help regarding filling serpentine cracks.]]> Sid Lapidary and Faceting Wed, 17 Apr 2013 07:55:23 +0000 http://www.mindat.org/forum.php?read,57,288479,288641#msg-288641 Re: Rainbow Obsidian Images http://www.mindat.org/forum.php?read,57,288479,288641#msg-288641 Gabriella Ferrera Lapidary and Faceting Wed, 20 Mar 2013 14:25:55 +0000 http://www.mindat.org/forum.php?read,57,288479,288627#msg-288627 Re: Rainbow Obsidian Images http://www.mindat.org/forum.php?read,57,288479,288627#msg-288627 juan tort Lapidary and Faceting Wed, 20 Mar 2013 04:39:38 +0000 http://www.mindat.org/forum.php?read,57,288479,288623#msg-288623 Re: Rainbow Obsidian Images http://www.mindat.org/forum.php?read,57,288479,288623#msg-288623 Gabriella Ferrera Lapidary and Faceting Wed, 20 Mar 2013 01:49:58 +0000 http://www.mindat.org/forum.php?read,57,288479,288622#msg-288622 Re: Rainbow Obsidian Images http://www.mindat.org/forum.php?read,57,288479,288622#msg-288622 Alfredo Petrov Lapidary and Faceting Wed, 20 Mar 2013 01:39:17 +0000 http://www.mindat.org/forum.php?read,57,288479,288620#msg-288620 Re: Rainbow Obsidian Images http://www.mindat.org/forum.php?read,57,288479,288620#msg-288620 Gabriella Ferrera Lapidary and Faceting Wed, 20 Mar 2013 01:14:20 +0000 http://www.mindat.org/forum.php?read,57,288479,288618#msg-288618 Re: Rainbow Obsidian Images http://www.mindat.org/forum.php?read,57,288479,288618#msg-288618 created by the cutter!]]> Alfredo Petrov Lapidary and Faceting Wed, 20 Mar 2013 00:54:16 +0000 http://www.mindat.org/forum.php?read,57,288479,288615#msg-288615 Re: Rainbow Obsidian Images http://www.mindat.org/forum.php?read,57,288479,288615#msg-288615 Gabriella Ferrera Lapidary and Faceting Wed, 20 Mar 2013 00:21:50 +0000 http://www.mindat.org/forum.php?read,57,288479,288613#msg-288613 Re: Rainbow Obsidian Images http://www.mindat.org/forum.php?read,57,288479,288613#msg-288613 Rock Currier Lapidary and Faceting Tue, 19 Mar 2013 23:48:03 +0000 http://www.mindat.org/forum.php?read,57,288479,288601#msg-288601 Re: Rainbow Obsidian Images http://www.mindat.org/forum.php?read,57,288479,288601#msg-288601 Alfredo Petrov Lapidary and Faceting Tue, 19 Mar 2013 21:04:17 +0000 http://www.mindat.org/forum.php?read,57,288479,288600#msg-288600 Re: Rainbow Obsidian Images http://www.mindat.org/forum.php?read,57,288479,288600#msg-288600
I see my photo didn't post. So how is something like this achieved?
http://www.rikoo.com/pro/1103085.html]]> Gabriella Ferrera Lapidary and Faceting Tue, 19 Mar 2013 21:02:20 +0000 http://www.mindat.org/forum.php?read,57,288479,288506#msg-288506 Re: Rainbow Obsidian Images http://www.mindat.org/forum.php?read,57,288479,288506#msg-288506 volcano.oregonstate.edu]
If you orient the rock so the banding is parallel to the back and do a cabachon cut, the bands will follow the outline of the stone.]]> David Von Bargen Lapidary and Faceting Mon, 18 Mar 2013 20:22:29 +0000 http://www.mindat.org/forum.php?read,57,288479,288479#msg-288479 Rainbow Obsidian Images http://www.mindat.org/forum.php?read,57,288479,288479#msg-288479

]]> Gabriella Ferrera Lapidary and Faceting Mon, 18 Mar 2013 16:12:19 +0000 http://www.mindat.org/forum.php?read,57,217667,287659#msg-287659 Re: Inland swap top http://www.mindat.org/forum.php?read,57,217667,287659#msg-287659
kesideech@att.net]]> cbufalo Lapidary and Faceting Sun, 10 Mar 2013 15:13:37 +0000 http://www.mindat.org/forum.php?read,57,287223,287346#msg-287346 Re: The glyptic (hack gems) http://www.mindat.org/forum.php?read,57,287223,287346#msg-287346 Kelly Nash Lapidary and Faceting Wed, 06 Mar 2013 21:36:08 +0000 http://www.mindat.org/forum.php?read,57,287223,287309#msg-287309 Re: The glyptic (hack gems) http://www.mindat.org/forum.php?read,57,287223,287309#msg-287309 If carved is better can a manager change the title?
I have only tried to open a interesting topic of gemmology since no one has written in Mindat ;-)]]> Ferdinando Giovine Lapidary and Faceting Wed, 06 Mar 2013 17:19:59 +0000 http://www.mindat.org/forum.php?read,57,287223,287301#msg-287301 Re: The glyptic (hack gems) http://www.mindat.org/forum.php?read,57,287223,287301#msg-287301 Kelly Nash Lapidary and Faceting Wed, 06 Mar 2013 15:14:41 +0000 http://www.mindat.org/forum.php?read,57,287223,287276#msg-287276 Re: The glyptic (hack gems) http://www.mindat.org/forum.php?read,57,287223,287276#msg-287276 Ferdinando Giovine Lapidary and Faceting Wed, 06 Mar 2013 09:26:58 +0000 http://www.mindat.org/forum.php?read,57,287223,287231#msg-287231 Re: The glyptic (hack gems) http://www.mindat.org/forum.php?read,57,287223,287231#msg-287231 Houston Museum of Natural Science until March 31, then it moves to another museum.]]> Paul Brandes Lapidary and Faceting Tue, 05 Mar 2013 21:26:09 +0000 http://www.mindat.org/forum.php?read,57,287223,287223#msg-287223 The glyptic (hack gems) http://www.mindat.org/forum.php?read,57,287223,287223#msg-287223 I visited at the end of 2012 that is the finest Italian Museum collection of classical glyptic, especially Roman, but that overall the collection spans 5,000 years at the Capitoline museums in Rome and I could buy the exhibition catalogue "La glittica Santarelli ai Musei Capitolini, Artemide Ed. (2012) pp 1-415"

I add here an interesting pdf on Roman glyptic in Tunisia
[eprints.uniss.it]]]> Ferdinando Giovine Lapidary and Faceting Tue, 05 Mar 2013 20:00:26 +0000 http://www.mindat.org/forum.php?read,57,217667,286728#msg-286728 Re: Inland swap top http://www.mindat.org/forum.php?read,57,217667,286728#msg-286728 Clearly your needs are different than that of a lapidary. We do lapidary for a living and a cheap Chinese tile saw will not do what a quality lapidary machine will do. However, you are right, those same quality lapidary machines do seem a little expensive. I feel the same way about "nicer" cars. They are just a car so why pay extra for a name, right? I guess the same can be said about a house too.

I do encourage you to build your own equipment. I have done it many times to fit our needs.

We sold the swap top units in our store for a short period of time--See my previous posts.]]> Rick Dalrymple Lapidary and Faceting Thu, 28 Feb 2013 17:14:35 +0000 http://www.mindat.org/forum.php?read,57,217667,286713#msg-286713 Re: Inland swap top http://www.mindat.org/forum.php?read,57,217667,286713#msg-286713 tom henshue Lapidary and Faceting Thu, 28 Feb 2013 13:14:06 +0000 http://www.mindat.org/forum.php?read,57,217667,286176#msg-286176 Re: Inland swap top http://www.mindat.org/forum.php?read,57,217667,286176#msg-286176 Ali Kelly Lapidary and Faceting Sat, 23 Feb 2013 04:07:24 +0000 http://www.mindat.org/forum.php?read,57,44737,285836#msg-285836 Re: polishing glass http://www.mindat.org/forum.php?read,57,44737,285836#msg-285836 Rock Currier Lapidary and Faceting Wed, 20 Feb 2013 09:01:15 +0000 http://www.mindat.org/forum.php?read,57,44737,285802#msg-285802 Re: polishing glass http://www.mindat.org/forum.php?read,57,44737,285802#msg-285802 Linda Carnicelli Lapidary and Faceting Tue, 19 Feb 2013 21:38:53 +0000 http://www.mindat.org/forum.php?read,57,285634,285653#msg-285653 Re: star quartz spheres http://www.mindat.org/forum.php?read,57,285634,285653#msg-285653
Years ago I found some rose quartz from the Scott mine in SD that was some of the nicest star material I've ever seen, comparable to the best from Madagascar. Unfortunately, larger flawless pieces appear rare from this deposit. I also collected material from the Hogg Mine near LaGrange, GA that would cut spheres up to about 30mm with no flaws, but almost nothing larger than that. My collection had examples of blue, white, rose, lavender, and smoky material with strong stars, both asterism and diasterism.from all over. Doesn't seem to be much interest in this sort of thing anymore.]]> Henry Barwood Lapidary and Faceting Mon, 18 Feb 2013 04:20:49 +0000 http://www.mindat.org/forum.php?read,57,285634,285650#msg-285650 Re: star quartz spheres http://www.mindat.org/forum.php?read,57,285634,285650#msg-285650 Steve.]]> Steven Kuitems Lapidary and Faceting Mon, 18 Feb 2013 03:15:06 +0000 http://www.mindat.org/forum.php?read,57,285634,285634#msg-285634 star quartz spheres http://www.mindat.org/forum.php?read,57,285634,285634#msg-285634
I would like to hear from any other star quartz collectors, sphere cutters who have suggestions/recommendations or anyone who would just like to compare notes. This will be my first foray back into lapidary in 40 years!]]> Henry Barwood Lapidary and Faceting Sun, 17 Feb 2013 22:46:43 +0000