engraving on obsidian?

SarcasticDwarf

Diamond Member
Jun 8, 2001
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ok, here's what I am looking to do:

I want an oval shapped piece of obsidian about an inch and a half tall, 1/4 inch deep, and about 1/2-3/4 inch wide.

I would like to get an engraving of a dragon on one side (my initials on the other) and have that engravng inlaid with a tiny ammount of silver (the thickness of the engraving will be significantly thinner than that of a toothpick).

So, for anyone that is in the know, who can I go to to get this done? and for that matter, how much will this set me back? THe engraving is not very complex at all, just rather small.

and damn anyone who wants to copy me!
 

JC

Diamond Member
Feb 1, 2000
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You could start at a rock/mineral shop. They could likely shape a piece for you, maybe engrave it too. Prolly need a jewelry shop for the inlay. As for cost, I dunno.

JC
 

SarcasticDwarf

Diamond Member
Jun 8, 2001
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Originally posted by: JC
You could start at a rock/mineral shop. They could likely shape a piece for you, maybe engrave it too. Prolly need a jewelry shop for the inlay. As for cost, I dunno.

JC

good idea, now if only I can find one...

*grabs his (measures it) 9 inch tall stack of yellow pages
 

Brutuskend

Lifer
Apr 2, 2001
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Some community collages have lapidary class' you could take.
Still, because of the brittle nature of obsidian I think sandblasting would work better than engraving.
 

SarcasticDwarf

Diamond Member
Jun 8, 2001
9,574
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Originally posted by: Brutuskend
Some community collages have lapidary class' you could take.
Still, because of the brittle nature of obsidian I think sandblasting would work better than engraving.

sandblasting would kinda destroy it, would it not
 

SarcasticDwarf

Diamond Member
Jun 8, 2001
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Originally posted by: amnesiac 2.0
Why obsidian? Why not an opal?
AFAIK obsidian is too fragile to engrave. It will chip.

WHat color is opal? I am looking for something that is 1) cheap and 2) very deep blue/purple or black
 

JC

Diamond Member
Feb 1, 2000
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Since obsidian is basically glass, perhaps sandblasting with a template would be the answer.

JC
 

Brutuskend

Lifer
Apr 2, 2001
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Originally posted by: DeathByAnts
Originally posted by: Brutuskend
Some community collages have lapidary class' you could take.
Still, because of the brittle nature of obsidian I think sandblasting would work better than engraving.

sandblasting would kinda destroy it, would it not

No.

I have sandblasted a LOT of glass, and the nature of glass is about as close as you can get to obsidian.

You mask it off, cut out your design, and blast it. The longer you blast, the deeper it gets.
 

SarcasticDwarf

Diamond Member
Jun 8, 2001
9,574
2
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Originally posted by: Brutuskend
Originally posted by: DeathByAnts
Originally posted by: Brutuskend
Some community collages have lapidary class' you could take.
Still, because of the brittle nature of obsidian I think sandblasting would work better than engraving.

sandblasting would kinda destroy it, would it not

No.

I have sandblasted a LOT of glass, and the nature of glass is about as close as you can get to obsidian.

You mask it off, cut out your design, and blast it. The longer you blast, the deeper it gets.


I would think the design would be WAY too intricate for a template. The lines would be thinner than the width of an average piece of snad.
 

Brutuskend

Lifer
Apr 2, 2001
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What I always did was. I used two layers of masking tape over the glass. Then using carbon paper, I traced my pattern and transferred it to the masking tape. Then I used a Exacto knife and cut out the area I wanted blasted. The only limit is how well (and fine) you cut. Silica sand comes in many different sizes.
 

SarcasticDwarf

Diamond Member
Jun 8, 2001
9,574
2
76
Originally posted by: Brutuskend
What I always did was. I used two layers of masking tape over the glass. Then using carbon paper, I traced my pattern and transferred it to the masking tape. Then I used a Exacto knife and cut out the area I wanted blasted. The only limit is how well (and fine) you cut. Silica sand comes in many different sizes.

Yeah, but where can I get this done? I am completely unable to do work of this type.
 

Brutuskend

Lifer
Apr 2, 2001
26,558
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Look around. There are many places that do sandblasting.

Some Auto shops, paint shops (Esp. powder coating places) and maybe some craft shops.