beechcomber
spending too much on rocks
Summertime!
Member since March 2006
Posts: 345
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Post by beechcomber on Apr 4, 2006 21:20:47 GMT -5
I collect a lot of beach glass (hence the name) and wondered if anyone tumbles glass and how it turns out? I know the board is "rock tumbling" but didn't know if glass fell into the category....somewhat.....somewhere....you know what I mean.
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Post by Bikerrandy on Apr 4, 2006 22:06:02 GMT -5
Yes, same category. I've never tumbled it myself but some people on here have posted pics of tumbled beach glass in the past. The MOH is three I believe.
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Post by LCARS on Apr 4, 2006 22:52:07 GMT -5
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inflight22
has rocks in the head
Member since January 2006
Posts: 710
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Post by inflight22 on Apr 4, 2006 23:04:16 GMT -5
I've tumbled some glass, and I usually throw it in sometime after the 60/90 phase. When it's shaped nicely, I save it until the polish phase.
jj
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Post by Jack ( Yorkshire) on Apr 5, 2006 3:20:02 GMT -5
Hi,
Im on with some now ( awaiting other soft rocks shaping up ) to make a small barrel full of softer batch stones.
Jack Yorkshire Uk
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rockhard
starting to spend too much on rocks
Member since March 2006
Posts: 227
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Post by rockhard on Apr 5, 2006 4:50:19 GMT -5
If I can jump in... I hear about glass being gassy... I've already had an accident with slurry being exploded into the bedroom where I run my tumbler. No glass even, but maybe some petrified wood. I've stopped that partly by setting the barrel on a big rock or teacup before sealing, so there's room for expansion. would that be enough for glass outgassing?
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Post by LCARS on Apr 5, 2006 9:03:50 GMT -5
Yes, beach glass has a tendancy to outgas. When I load a barrel I use warm water & push the bottom of the barrel in a bit when I seal it to give the pressure somewhere to go & then check it every day for a bulge forming in the bottom & burp it if necessary.
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beechcomber
spending too much on rocks
Summertime!
Member since March 2006
Posts: 345
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Post by beechcomber on Apr 5, 2006 10:37:25 GMT -5
LCARS-thanks for the link and the routine you used. I have a bunch of glass that might go in next...already tumbled and frosty!! I love the polished look better than the frosty, but some pieces just look great frosty. Thanks all for your help!
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Post by hermatite on Apr 5, 2006 10:39:40 GMT -5
I fake seaglass all the time...loooooove that frosty look. I've never had a problem with it gassing, but that might be because it's not real beach glass, just busted up bottles etc.
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Post by xenaswolf on Apr 5, 2006 12:03:22 GMT -5
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stefan
Cave Dweller
Member since January 2005
Posts: 14,095
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Post by stefan on Apr 5, 2006 12:17:20 GMT -5
So your basically tumbling your "glass" off (jk hahahaha man I crack my self up)
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Pebbles
has rocks in the head
Member since November 2005
Posts: 557
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Post by Pebbles on Apr 5, 2006 12:17:33 GMT -5
Okay, this might be a really dumb question, but I just have to ask....
Is all beach glass broken up man-made glass? Glass is made from sand, right? So, is there such a thing as nature made glass with similar hardness/properties as the man-made type?
I've always wondered about that, but was afraid to ask.
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WyckedWyre
fully equipped rock polisher
Member since April 2007
Posts: 1,391
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Post by WyckedWyre on Apr 5, 2006 12:23:48 GMT -5
Pebbles- Apache Tears, obsidian is volcanic glass (*Nature made glass*), has many of the same properties and tumbling qualities of glass (such as gas buildup). Susan
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Pebbles
has rocks in the head
Member since November 2005
Posts: 557
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Post by Pebbles on Apr 5, 2006 12:36:56 GMT -5
Thanks, Susan! I never knew that about the A. Tears & Obsidian. I guess that explains why they need special treatment for tumbling.
So the heat from the volcano melts the sand (or whatever) & it turns it into a glass-like rock when it cools. The only "lava" rock I've ever seen in person is a real porous rock that's quite light & airy. Guess it never dawned on me that cooled lava could also be more solid. Duh!!! Learn something new every day!
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Post by xenaswolf on Apr 5, 2006 12:39:17 GMT -5
Stefan, you need a vacation!
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stefan
Cave Dweller
Member since January 2005
Posts: 14,095
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Post by stefan on Apr 5, 2006 12:47:28 GMT -5
I hear ya!!! only 23 days till camping!!!!! Pebbles- you never learn if you don't ask!!!!!!
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Duckbean
fully equipped rock polisher
Looking for rocks in all the wrong places
Member since February 2005
Posts: 1,072
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Post by Duckbean on Apr 5, 2006 22:12:48 GMT -5
You know it's great how these threads pop up just when you need them! Since you are talking glass, Has any one tumbled gold stone which is not stone but man made glass? Don't know if you go about it like you would ordinary glass or if it is different some how. Does it out gas like regular glass? The biggy is does it break up like regular glass , I've been cut from plain old rock so this is inportant to me, most will be cut offs and end pieces but I'm sure some will have to be busted up. Thanks All for your help
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Post by LCARS on Apr 5, 2006 22:51:33 GMT -5
Just a note about outgassing from tumbling glass... I know a little bit about chemistry from working in R&D. Glass is Silicon Dioxide & grit is Silicon Carbide. I think that as you tumble glass, the constituents decompose to form Carbon Dioxide gas as a byproduct. The only thing I can't figure out is what the catalyst is...? Anybody with a B.D. in chem want to jump in here?
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Post by xenaswolf on Apr 19, 2006 12:21:22 GMT -5
Ok I've heard if you put a Tums in the barrel it will stop the gassing...what about rolaids?
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stefan
Cave Dweller
Member since January 2005
Posts: 14,095
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Post by stefan on Apr 19, 2006 12:55:14 GMT -5
Tums have Calcium and that is why they work- Rolaids are Aluminuim carbonate and won't work (J/K) boy almost sounded like I knew what I was talking about- As for Goldstone I think you treat it like a regular glass- Careful cause it is sharp- (just ask Earthdog)
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