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Lapidary / Gemstone Community Forum
December 10, 2018, 08:45:25 am
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newbie question

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Author Topic: newbie question  (Read 422 times)
zurn
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« on: November 23, 2015, 02:38:21 pm »

hi all
bear with me
I've got an amethyst stalactite slice
i'd like to add a bezel
my question is whats to keep it from sliding out
also can anyone tell me how to add pics
thx help
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Steve
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« Reply #1 on: November 23, 2015, 03:03:46 pm »

I use Photobucket to post photos here in the Forum.  That way it doesn't eat up the digital space of the site.

Join Photobucket - it's free - post your photos to the site, then when you bring up the photo you want copy you'll notice a few (4) bars with info on the right side.  If you left click on the one labeled "IMG" it will copy the URL (address) and then you post that on the Forum page you want to show the photo.

At the bottom of my entry is my  photobucket site, if you want to see what it's like................
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My Photo Bucket site:  http://s743.photobucket.com/user/sferenz/library/?sort=3&page=1

dickb
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« Reply #2 on: November 23, 2015, 06:52:47 pm »

One other thing Steve and Zurn, you need to make your photo's public or they won't show. You can set up one specific album for public photo's or you can make them all public if you want. I use Photobucket also and resize to 550 pixel width.


Dickb
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Ken S.
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« Reply #3 on: November 23, 2015, 06:58:34 pm »

Different ways to hold it in but if it's an all around bezel then you burnish the top of the bezel all around the slice.  You could use prongs instead and show the edges of the slice. You can also drill and rivet it to a backing. Depends on the look you want.

Ken S.
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gemfeller
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« Reply #4 on: November 23, 2015, 07:31:00 pm »

Just my opinion:  I think the appeal of amethyst stalactite slices is in the appearance of the crystals themselves.  I've seen some that were bezeled but most were done by a specialized plating process called electroforming. Depending on how your slice looks -- they vary a lot -- I'd recommend using a back-plate and prongs, like this nice piece from Sarah Designs I found on Etsy:

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zurn
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« Reply #5 on: November 27, 2015, 07:28:02 pm »

im still downloading pics
i like the back plate and prongs
the one i have is a half amethyst points and agate slice
I have never seen type I have in prongs
but i think it would look cool
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womanwithatorch
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« Reply #6 on: November 28, 2015, 12:03:54 pm »

The piece by Sarah Designs is very beautiful. I would worry about its security in the setting. How would one go about hardening the silver prongs enough for a secure hold? Unless those prongs are white gold? 
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« Reply #7 on: November 28, 2015, 12:47:15 pm »

LWT: I was suggesting a concept, not an example to be followed in detail.  More prongs might be indicated depending on the nature of the stone to be set.  As for work-hardening, all it takes for Sterling is a short time in a vibratory tumbler with stainless steel shot.  But it's easy to overdo and make prongs too hard for easy pushing.  Some pieces can be tumbled that way after setting but not all stones are suitable.  I use a Minisonic vibe which has very gentle but effective action.

I think the main concern is the way the prongs are shaped and where they're placed. When I make pieces like that I use cup burs and filing as needed to round off the ends of pongs so there are no sharp edges to catch on fabric, etc.  I give all pieces the "fabric test"  before I consider them finished.
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