Lapidary / Gemstone Community Forum
January 26, 2022, 01:02:28 am
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
 
  Home Help Search Login Register  
  Show Posts
Pages: [1] 2 3 ... 12
1  Lapidary Shop / Moderator, Catmandewe ( Tony ) / Discs, Wheels, Belts, Pads, and Polishing / Re: Coarse finish from 1200 diamond flat lap? on: August 16, 2015, 10:58:43 am
As a seller of diamond flat laps for nearly twenty years I have heard this many times when it comes to 1200 discs. When the diamond is plated no matter how carefully there will always be areas where it mounds and even if you use a strong 10X loupe more than likely you can't see these areas. This is the main reason I do not use 1200 mesh diamond plated products, I sell them because people want them.

The best thing you can do is get a piece of hard agate about 1/4 inch thick, round the edge a bit on a coarser lap and then work it on the 1200, usually with a bit of time you can get the lap to stop creating those pesky scratches.

Hope this is of some help .......... All my best ........ Danny
2  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Is it Mica or ?? on: July 21, 2015, 02:42:51 pm
Looks like fluorite to me.

Danny
3  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: ID's please? on: June 20, 2015, 01:15:29 pm
The first looks like serpentine, second one is Bloodstone number three is Rhyolite.

All my best .......... Danny
4  Lapidary Shop / Moderator, Catmandewe ( Tony ) / Miscellaneous Shop Talk / Re: Looking to get a custom hallmarking stamp for jewelry... on: June 15, 2015, 09:24:54 am
Nirena,
Its been years since I purchased a hallmark stamp but most I have came from this company.
www.tuckertool.com/

All my best ..... Danny
5  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Share Our Finished Cabochons and General Cabbing Questions / Tutorials / Re: turquoise? on: June 09, 2015, 03:45:04 pm
It seems funny that I posted regarding green turquoise this morning and came back and its not here.

All turquoise mines produce green turquoise, some more than others. I have been to more than a few mines even in China and always saw green whether in the dumps or in the production. Nevada has produced the finest greens to ever be seen. I think the top three greens were from the Orville Jack mine the Northern  Lights mine and Carico Lake mine, all three of these mines are in the Crescent Valley area of Nevada. All three of these mines are not in production at this time and I doubt they will ever open again. If you can find high grade of any of these three mines the cost will range from 20 to 40 dollars a gram.

The piece posted above reminds me of Royston also from Nevada.

I will try to post images for the three above mentioned mines soon.

All my best ............. Danny
6  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Share Our Finished Cabochons and General Cabbing Questions / Tutorials / Re: turquoise? on: June 06, 2015, 05:29:26 pm
Sheila,
As I have been cutting turquoise since 1977 and never would cut treated stone for my own work I cut only natural stone, I can't agree that 95% of the turquoise in the last 40 years had been  stabilized or treated in some way. I will say a large portion has been. Here are a few ways to be able to tell if your stone is  stabilized or treated. First if it smelled sweet when you were cutting and grinding its most likely  stabilized or treated . I think the best test for  stabilized or treated turquoise whether rough or cabbed  is to use a BIC lighter or other flame source, hold the piece of stone very near the side of the flame for ten seconds or so then smell the piece, if it is treated again you get a very sweet smell.

Nearly all treated turquoise even if it has been tumbled will show evidence of treating if you look carefully with a 5 or 10 power eye loupe, you will see the resins down in the lowest parts of the stone it usually looks quite shiny or has pooled or balled up again looking very shiny. To me this looks like it has been treated so if you answer yes to the sweet tests you know it has been.

Many people prefer treated stone I know in Asia where they want robins egg blue nearly all stone of this color is treated so it holds its color, this said the last time I was at the Hong Kong jewelry show (1997) treated robins egg blue finished stone was being sold at 20.00 a carat. Your stone is very nice so don't discount this fact, as turquoise is becoming more rare all of it has risen in price over the past few years.

Hope this is of some help ............ All my best ..... Danny
7  Lapidary Shop / Moderator, Catmandewe ( Tony ) / Miscellaneous Shop Talk / Re: Recommendations for a new Dop Pot? on: May 28, 2015, 05:43:43 pm
I purchased one from Inland a little over a year ago. As with pretty much everything it is made in China, I have only used it a few times but it seems to work just fine.

All my best ......... Danny

I just did a google search and see the one I purcahsed is no longer available, there is a new copper bowl one on the market so you will need to do a bit of research.
8  Creative Stone Works / Moderator, Michael Hoover / Beadmaking, Drilling, and Beading / Tutorials / Re: Hillquist Gem Drill. on: May 27, 2015, 10:17:03 pm
Don,
As with many old machines for that time period this looks like it had little use, seems at that time many thought lapidary might be fun and perhaps make a few bucks but once most tried it out they found that it was more trouble than it was worth. Nice find when you have it restored post an image.

All my best ........... danny
9  Lapidary Shop / Moderator, Catmandewe ( Tony ) / Discs, Wheels, Belts, Pads, and Polishing / Re: Leather vs Felt? on: May 19, 2015, 09:25:46 am
Danny / lopacki, is that motor you're using from a PDQ Gem Drill ? How does the Dremel speed control work with it ?  I have both the PDQ drill, and their little 3" saw. I need a good speed control for them. The old sewing machine foot control that came with them gets hot on the foot after a few minutes of use.

Don,
That is similar to the PDQ motor, this set up is the first I had for wood polishing as I needed to be able to control the speed of the motor I tried plugging it into the Dremel control which worked fine the only problem the motor being 1/15th HP it would slow down as soon as you started to polish.

 After making a move about 14years ago when I set up a carving bench in the house so I could play with fire agate while I had no shop. I purchased a Foredom bench lathe and found that I should have bought one of these little jewels many years before I did. If I were you and you have the funds buy a Foredom K3340 bench lathe kit, it comes with pretty much all you need to be in business. If I have time later today I will go out to the studio and take an image of my set up with a wood wheel mounted.

All my best .......... Danny



10  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Jasper / Agate on: May 17, 2015, 03:54:40 pm
I just posted a long thread on a nephrite bead I made and the preview worked perfect and this is why I was very pleased with the post. I did notice that the preview was at the top of the page so each edit I just dropped down to what I was writing.

All my best ......... Danny
11  Lapidary Shop / Moderator, Catmandewe ( Tony ) / Discs, Wheels, Belts, Pads, and Polishing / Re: Leather vs Felt? on: May 13, 2015, 01:30:15 pm
Kerry,
Way back in 1981 or so when Sugilite first hit the market I purchased a few pieces at the Tucson show I was with a friend out on the patio of the hotel admiring my purchase when someone commented nice stone good luck polishing it. After playing around with the stone for awhile I decided to try making a soft wood wheel about three inches in diameter to see what it would do. This wheel ended up giving me the best shine I had ever seen.

Here it is 34 years later and I exclusively use wood wheels for all of my polishing. I have three wheels that each have their own arbor which I use on my Foredom bench lathe. Each wheel is charged with an oil diamond mix that once it soaks in a bit only needs recharging once in awhile.
Mesh sizes I use 1200, 14,000 and 50,000

I have attached an image of my first wood wheel set up to give an idea of what I am talking about. Since I first came up with this set up I have never found a stone that I could not get a water wet shine on with no “orange peel”.

As I am not a cab cutter this method works great for my applications don’t know if I would use if I cut only cabs. I have also attached an image of a recently made bead, all of the stone on this bead was polished with wood this should give you an idea of the quality of polish my technique gives.

All my best ............ Danny
12  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Identification Inquiries / Re: Need help with Opal ID on: May 05, 2015, 10:34:05 am
Justin,
If possible post a few more images of this ring some taken in the sunlight would be best, also an image of the whole ring.

All my best ........... Danny
13  Lapidary Shop / Moderator, Catmandewe ( Tony ) / Cabbing And Grooving Machines.. Projects / New and Used Reviews / Re: Crystalite Ringleader on: May 03, 2015, 11:40:49 am
Hi Bob!

I have an old Crystalite Ringleader. You may need to replace the pump if it's not working. An aquarium or small fountain pump should work fine. If the lines are clogged, you have a different problem on your hands. They are a real pain to remove and or replace. Depends on how mechanical you are. I finally got so frustrated with mine that I got a new Genie. Mine now sits on a shelf.

If yours is sitting on the shelf and its for sale I have an interest. daniel@stonebeads.com

All my best ...... Danny
14  Creative Stone Works / Moderator, Michael Hoover / Beadmaking, Drilling, and Beading / Tutorials / Re: Inspired by a Bactrian/Indus valley beads. on: May 02, 2015, 09:18:55 am
Marty.
I have a few fixtures that I have made that makes it possible for me to do this as I always make my beads around the hole so the hole is very important. The bead is never fixed it is free turning I slowly hand turn is as I cut it so needless to say there are quite a few hours in a project like this.

All my best ....... Danny
15  Creative Stone Works / Moderator, Michael Hoover / Beadmaking, Drilling, and Beading / Tutorials / Inspired by a Bactrian/Indus valley beads. on: May 01, 2015, 05:40:00 pm
Bead made of Polar Jade "Nephrite".
FINISHED BEAD SIZE 2.11 inch 53.5 mm long .48 inch 12.1 mm in diameter



Rough piece as purchased cut in half



Each piece a bit over two inches long 16mmX16mm



Piece in hand to give an idea of size.



5mm hole drilled dead center.



Both sides of rough cut bi-cone, note witness marks showing how well centered the hole is.



Hole end after cutting rough cut bi-cone



Shaped to taper and radius cut bi-cone shape.
When I had the bead to this point I studied it for awhile and thought about cutting a small radius in the center. I took all the measurements and drew it in Rhino5 3D software
I then made the cut for the radius on the bead and saw that I thought it would work out very well all of this without having to make a single cut in the actual bead.




Thought the center radius looked great so back to work.



Center radius cut and polished.



Piece finished on top of a mirror.



Finished bead in fingers to show size.



Funny what you can find hiding inside a piece of stone ................ Time to start looking!!

All my best ..... Danny

The thickness of the of the material on the outer edge is .80 mm
Pages: [1] 2 3 ... 12
Bookmark this site! | Upgrade This Forum
SMF For Free - Create your own Forum

Powered by SMF | SMF © 2016, Simple Machines
Privacy Policy