Hi friends, I went to town today and found about 1.5 pounds of obsidian at Vinnie's Thrift Shop (75 cents). It's in three pieces, roughly 3" x 5" each, up to 1" thick. Some edges are thin and extremely sharp. I've never tried to polish this glass as I haven't had any rough material. Now with this, and maybe getting more, it may be time to try. It would have to be made into much smaller pieces, and I'm stumped as to how to cut it. Would my trusty little 7" tile cutter likely work. Using a saw seems counter-intuitive. I would expect the material to shatter. Can anyone set me straight on how to get it into smaller bits? Also, would it work to make up a load by adding pieces of ordinary glass? Thanks for your help. Cheers! Robbiejohn.
Post by ColtChainmailJewelryDesigns on Jul 20, 2011 3:18:29 GMT -5
Cutting it with a saw is a GOOD thing!!!! It's not likly to shatter unless it gets snagged or something. But I really should zip it before I say something that i dont even know about the truth, lol!
You can smash it with a hammer, but with so little amount you have, not a good idea. Smashing Obsidian make lots of tiny shards. But that isn't the way I do it anymore. And I find you can get lot less tiny shards (if any) if you hold the rock, and tap it on a sledg hammer on the ground! Seems like it brakes off larger bits. =)
You're better off tumbling obsidian with obsidian (of the same type). Using glass as a filler may work, but there are too many variables to know. Not all obsidian and not all glass are created the same.
As suggested in another post I tried a small diamond blade on my Dremel a few nights ago and found that it cuts it like butter and no chipping on edges. You get less waste than your tile saw would create. I know I`ll use mine for it again when needed. The blades are pretty inexpensive too for the Dremel.
Post by susand24224 on Jul 21, 2011 0:36:01 GMT -5
Overall I agree with Steve--many variables between glass and obsidian. That being said, I just tumbled some glass and obsidian and the variables worked out in my favor--both tumbled and polished nicely. I remember reading that glass can be as low as Mohs 5 in hardness and obsidian is 6-6.5 so it seems that if anything goes wrong it will be with the glass. This is just a *slightly* educated guess, though
Fossilman: LOL,Couldn't tell ya' Jean,I quit the hard stuff a long time ago.....That Tequila can kill ya'...!!!!
Jul 8, 2014 17:00:51 GMT -5
rockpickerforever: Mike, I can tell ya I buy my tequila in 1.75 liter bottles, lol. None of those little bottles for me. One cannot live 10 miles from the Mexican border and not drink margaritas!
Jul 8, 2014 17:09:48 GMT -5
phil: metric booze.... smaller bottle, less booze and higher prices.
Jul 9, 2014 9:58:15 GMT -5
Fossilman: Tequila straight up and chase it with a cold beer...LOL
Jul 9, 2014 14:35:56 GMT -5
wampidy: Na, tequila only kills the bugs that kill ya. Margarita or tequila shot (no s) are the only drinks that do not give me a hangover. I do not do it very often so one of either gives me a fuzzy nose and makes me gigglier than normal if that is possible.
Jul 9, 2014 22:32:18 GMT -5
Shotgunner: I think the correct name for tequila is [Tuh - kill - ya]
Jul 10, 2014 12:08:00 GMT -5
Shotgunner: Jean, 10 miles from Mexiko? Really? Ain't it more like 30 miles? lol like that makes a diff?!?!?!?!
Jul 10, 2014 12:19:09 GMT -5
Fossilman: Love tequila..It's the only hard stuff I drink if and when I have any.....
Jul 10, 2014 14:05:36 GMT -5
rockpickerforever: Scott, no it ain't more like 30 miles. Okay, I was a little off. I'm 10.9 miles from the border. I checked the distance on ACME Mapper.
Jul 10, 2014 15:05:37 GMT -5
rockpickerforever: Jim and Mike, you really don't have to admit anything... really, lol! Tequila did me in years ago once when playing poker. I couldn't drink it, hell, couldn't even stand the smell of it in a marinade, for at least a year. I got over it, happy to say!
Jul 10, 2014 15:10:33 GMT -5
Shotgunner: I stand corrected. 10.9 miles it IS!!
Jul 10, 2014 16:19:42 GMT -5
Shotgunner: Tequila got me 25 years ago and I still can't stand the odor. For me, this is my new fave.
Jul 10, 2014 16:20:51 GMT -5
rockpickerforever: Well, that makes sense. Scott, didya wear the LOUD sneakers in Japan in case you got lost, or to visually offend the reserved Japanese people?
Jul 10, 2014 16:47:08 GMT -5
Shotgunner: loud sneakers and shirts, of course!
Jul 10, 2014 17:06:16 GMT -5
rockpickerforever: I'm used to seeing the bright shirts, so that didn't even register, lol. But the neon shoes were new to me! Ha!
Jul 10, 2014 22:52:45 GMT -5
wireholic: Jean - do you live in National City or Chula Juana? I used to live in I.B.
Jul 11, 2014 17:30:16 GMT -5
rockpickerforever: Karen, I lived in National City from about 1982 or '83, until we bought our current house out in Spring Valley in 1992. Been here since. If you lived down this way, then I' m sure you know where the Spring Valley Swap Meet is? Couple blocks from here.
Jul 11, 2014 20:12:07 GMT -5
Fossilman: I have a cousin that lives in Palm Springs,works as a caretaker for a rich lady....Been there forever,loves her job...
Jul 12, 2014 8:39:15 GMT -5